This document discusses kinematics of particles using polar components. It defines the position vector of a particle as the vector from the origin to the particle's position. For curvilinear motion, the instantaneous velocity vector is defined as the limit of the displacement vector divided by the time interval as the interval approaches zero. Similarly, the instantaneous acceleration vector is defined as the limit of the change in velocity vector over the time interval. Polar components (radial and transverse) and tangential and normal components are also introduced to analyze curvilinear motion. Expressions are derived for velocity and acceleration in terms of these component directions. An example problem of a centrifuge is worked out using these concepts.
- A particle starts from the point with position vector (3i + 7j) m and then moves with constant velocity (2i – j) ms-1. The question asks to find the position vector of the particle 4 seconds later.
- Substituting the values into the displacement equation gives the final position vector as (12i + 3j) m.
- A second particle is given a position vector of (2i + 4j) m at time t = 0 and a position vector of (12i + 16j) m five seconds later. Using the displacement equation gives the velocity of the particle as (2i + 4j) ms-1.
- For a third particle
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This PPT covers linear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This document discusses physical quantities and vectors. It defines two types of physical quantities: scalar quantities which have only magnitude, and vector quantities which have both magnitude and direction. Examples of each are given. Vector quantities are represented by magnitude and direction. The document then discusses methods for adding and subtracting vectors graphically using head-to-tail and parallelogram methods. It also covers resolving vectors into rectangular components, finding the magnitude and direction of vectors, dot products of vectors which yield scalar quantities, and cross products of vectors which yield vector quantities. Examples of applying these vector concepts are provided.
This document provides an overview of kinematics, the study of motion without considering causes. It defines fundamental kinematic concepts like position, displacement, velocity, acceleration and describes how to analyze motion using equations and graphs. Key topics covered include constant acceleration, free fall near Earth's surface, and graphical analysis of motion. The document is intended to help students understand and study the concepts of kinematics.
Vectors have both magnitude and direction and are represented by arrows. Scalars have only magnitude. There are two main types of operations on vectors: addition and multiplication. Vector addition uses the parallelogram or triangle rule to find the resultant vector. Multiplication of a vector by a scalar changes its magnitude but not direction. The dot product of vectors is a scalar that depends on their relative orientation. The cross product of vectors is another vector perpendicular to both original vectors. Examples demonstrate calculating vector components, additions, subtractions and products.
The document contains a list of 6 group members with their names and student identification numbers. The group members are:
1. Ridwan bin shamsudin, student ID: D20101037472
2. Mohd. Hafiz bin Salleh, student ID: D20101037433
3. Muhammad Shamim Bin Zulkefli, student ID: D20101037460
4. Jasman bin Ronie, student ID: D20101037474
5. Hairieyl Azieyman Bin Azmi, student ID: D20101037426
6. Mustaqim Bin Musa, student ID:
- A particle starts from the point with position vector (3i + 7j) m and then moves with constant velocity (2i – j) ms-1. The question asks to find the position vector of the particle 4 seconds later.
- Substituting the values into the displacement equation gives the final position vector as (12i + 3j) m.
- A second particle is given a position vector of (2i + 4j) m at time t = 0 and a position vector of (12i + 16j) m five seconds later. Using the displacement equation gives the velocity of the particle as (2i + 4j) ms-1.
- For a third particle
This PPT covers relative motion between particles in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This PPT covers linear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
This document discusses physical quantities and vectors. It defines two types of physical quantities: scalar quantities which have only magnitude, and vector quantities which have both magnitude and direction. Examples of each are given. Vector quantities are represented by magnitude and direction. The document then discusses methods for adding and subtracting vectors graphically using head-to-tail and parallelogram methods. It also covers resolving vectors into rectangular components, finding the magnitude and direction of vectors, dot products of vectors which yield scalar quantities, and cross products of vectors which yield vector quantities. Examples of applying these vector concepts are provided.
This document provides an overview of kinematics, the study of motion without considering causes. It defines fundamental kinematic concepts like position, displacement, velocity, acceleration and describes how to analyze motion using equations and graphs. Key topics covered include constant acceleration, free fall near Earth's surface, and graphical analysis of motion. The document is intended to help students understand and study the concepts of kinematics.
Vectors have both magnitude and direction and are represented by arrows. Scalars have only magnitude. There are two main types of operations on vectors: addition and multiplication. Vector addition uses the parallelogram or triangle rule to find the resultant vector. Multiplication of a vector by a scalar changes its magnitude but not direction. The dot product of vectors is a scalar that depends on their relative orientation. The cross product of vectors is another vector perpendicular to both original vectors. Examples demonstrate calculating vector components, additions, subtractions and products.
The document contains a list of 6 group members with their names and student identification numbers. The group members are:
1. Ridwan bin shamsudin, student ID: D20101037472
2. Mohd. Hafiz bin Salleh, student ID: D20101037433
3. Muhammad Shamim Bin Zulkefli, student ID: D20101037460
4. Jasman bin Ronie, student ID: D20101037474
5. Hairieyl Azieyman Bin Azmi, student ID: D20101037426
6. Mustaqim Bin Musa, student ID:
The document discusses particle kinematics and concepts such as displacement, velocity, acceleration, and their relationships for rectilinear and curvilinear motion. Key concepts covered include definitions of displacement, average and instantaneous velocity, acceleration, graphical representations of position, velocity, and acceleration over time, and analytical methods for solving kinematic equations involving constant or variable acceleration. Several sample problems are provided to illustrate applying these kinematic concepts and relationships to solve for variables like time, velocity, acceleration, and displacement given relevant conditions.
This upload is actually experimental, so sorry for the lost animations. This is my first post on SlideShare. Future presentations will take into account the loss of animation.
Also, I saw that the titles of all my slides got covered by something, so I'll never use this theme again. The titles of the slides are:
Slide 1: Vectors and Scalars
Slide 2: In this lecture, you will learn
Slide 3: What are vectors?
Slide 4: What are scalars?
Slide 5: A joke
Slide 6: A joke
Slide 7: What was that for?
Slide 8: What was that for?
Slide 9: Vectors
Slide 10: Geometric Representation
Slide 11: Vector Addition
Slide 12: Scalar Multiplication
Slide 13: The Zero Vector
Slide 14: The Negative of a Vector
Slide 15: Vector Subtraction
Slide 16: More Properties of Vector Algebra
Slide 17: Magnitude of a Vector
Slide 18: Vectors in a Coordinate System
Slide 19: Unit Vectors
Slide 20: Algebraic Representation of Vectors
Slide 21: Algebraic Addition of Vectors
Slide 22: Algebraic Multiplication of a Vector by a Scalar
Slide 23: Example 1
Slide 24: Example 2
Slide 25: A few words of caution
Slide 26: Problems
This document provides an overview of linear algebra, ordinary differential equations, and integral transforms taught in a course at National University of Sciences & Technology. It introduces the Laplace transform, a method for solving initial value problems by transforming differential equations into algebraic equations. Examples show how to take the Laplace transform of basic functions and use properties like shifting to solve problems. The document also discusses the inverse Laplace transform and applications of the method.
The document discusses how to calculate the resulting velocity of a plane when it encounters different wind conditions. It explains that with a tailwind, the plane's velocity relative to the ground is the sum of its velocity through the air and the velocity of the tailwind. With a headwind, the velocities subtract. With a side wind, Pythagorean theorem can be used to calculate the resultant velocity as the hypotenuse of a right triangle formed by the plane's southward velocity and the westward wind velocity. Vector addition is then used to determine the direction of the resulting velocity.
This document discusses linear kinematics and uniformly accelerated linear motion. It defines key concepts like displacement, velocity, acceleration, and their relationships. For uniformly accelerated linear motion where acceleration is constant, it presents the kinematic equations that relate displacement, initial/final velocities, time, and acceleration. These equations can be used to solve problems involving uniformly accelerated one-dimensional motion.
This document discusses rectilinear motion and concepts related to position, velocity, speed, and acceleration for objects moving along a straight line. It defines velocity as the rate of change of position with respect to time and speed as the magnitude of velocity. Acceleration is defined as the rate of change of velocity with respect to time. Examples of position, velocity, speed, and acceleration graphs are shown for an object with the position function s(t) = t^3 - 6t^2. The document also analyzes position versus time graphs to determine characteristics of an object's motion at different points. Finally, it works through an example of analyzing the motion of a particle with position function s(t) = 2t^3 -
The document discusses inner product spaces. Some key points:
- An inner product is a function that associates a number (<u,v>) with each pair of vectors (u,v) in a vector space, satisfying certain properties like symmetry and homogeneity.
- An inner product space is a vector space with an additional inner product structure.
- Properties of inner products include positivity (<v,v>≥0), linearity, and defining the norm (||v||) of a vector.
- Examples show the weighted Euclidean inner product satisfies the inner product properties and define the unit sphere in an inner product space.
This document provides an introduction to vectors, including:
- Vectors have both magnitude and direction, unlike scalars which only have magnitude.
- Vectors can be added and subtracted graphically by drawing them to scale and combining the tips and tails.
- The parallelogram method can be used to add vectors at any angle by forming a parallelogram.
- Vectors can also be broken into rectangular components and added or subtracted using their x and y components rather than graphically.
This document provides an overview of key concepts in kinematics including:
1) Kinematics deals with concepts of motion without considering forces, while dynamics considers the effects of forces on motion.
2) Displacement, speed, velocity, acceleration, and equations of motion for constant acceleration are introduced.
3) Applications include analyzing the motion of falling bodies and interpreting position-time and velocity-time graphs.
The document discusses vector multiplication using the dot product. It provides two formulas for calculating the dot product:
1) a.b = |a| |b| cosθ, where |a| and |b| are the magnitudes of the vectors, θ is the angle between them, and cosθ gives the effectiveness of their interaction. The dot product is largest when the vectors are parallel (θ = 0).
2) For vectors in 3D space, a.b = x1x2 + y1y2 + z1z2, where the x, y, z components of each vector are multiplied and summed.
It provides examples of calculating the dot product using both formulas in different vector
Vectors have both magnitude and direction, represented by arrows. The sum of two vectors is obtained by placing the tail of one vector at the head of the other. If the vectors are at right angles, their dot product is zero, while their cross product is maximum. Scalar multiplication scales the magnitude but not the direction of a vector.
This document discusses key concepts in physics related to speed, velocity, and acceleration. It defines speed and velocity, explaining that velocity includes both magnitude and direction. It describes how to calculate average speed, acceleration, and deceleration. Graphs of speed versus time and velocity versus time are examined, including how to determine acceleration from gradients and distance from areas. Free fall under gravity and the effects of air resistance on terminal velocity are also summarized.
This PPT covers curvilinear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Lesson 6: Polar, Cylindrical, and Spherical coordinatesMatthew Leingang
"The fact that space is three-dimensional is due to nature. The way we measure it is due to us." Cartesian coordinates are one familiar way to do that, but other coordinate systems exist which are more useful in other situations.
This presentation covers scalar quantity, vector quantity, addition of vectors & multiplication of vector. I hope this PPT will be helpful for Instructors as well as students.
This document provides an overview of classical mechanics. It discusses the main branches of mechanics including kinematics, dynamics, and statistics. It also covers Newton's laws of motion, conservation of momentum and angular momentum, conservative forces, and the law of conservation of energy. The document derives these conservation laws and principles for both single particles and systems of particles. It distinguishes between internal and external forces and inertial frames of reference.
This document contains chapter materials from the textbook "Vector Mechanics for Engineers: Dynamics, Ninth Edition" regarding the kinematics of rigid bodies. It discusses various types of rigid body motion including translation, rotation about a fixed axis, general plane motion, and general motion. It provides definitions and equations for the velocity and acceleration of particles in a rigid body undergoing different types of motion, including examples calculating velocity, acceleration, and angular displacement over time. Key concepts covered include absolute and relative velocity and acceleration in plane motion, instantaneous centers of rotation, and the effects of rotating reference frames.
1) The document discusses curvilinear motion, which refers to motion along a curved path rather than a straight line. It defines position, velocity, and acceleration vectors for particles undergoing curvilinear motion.
2) As an example, it examines the motion of projectiles, noting that the horizontal and vertical components of motion can be treated independently as rectangular components and integrated separately.
3) It then works through an example problem calculating the horizontal distance and maximum height for a projectile fired from the edge of a cliff.
The document discusses particle kinematics and concepts such as displacement, velocity, acceleration, and their relationships for rectilinear and curvilinear motion. Key concepts covered include definitions of displacement, average and instantaneous velocity, acceleration, graphical representations of position, velocity, and acceleration over time, and analytical methods for solving kinematic equations involving constant or variable acceleration. Several sample problems are provided to illustrate applying these kinematic concepts and relationships to solve for variables like time, velocity, acceleration, and displacement given relevant conditions.
This upload is actually experimental, so sorry for the lost animations. This is my first post on SlideShare. Future presentations will take into account the loss of animation.
Also, I saw that the titles of all my slides got covered by something, so I'll never use this theme again. The titles of the slides are:
Slide 1: Vectors and Scalars
Slide 2: In this lecture, you will learn
Slide 3: What are vectors?
Slide 4: What are scalars?
Slide 5: A joke
Slide 6: A joke
Slide 7: What was that for?
Slide 8: What was that for?
Slide 9: Vectors
Slide 10: Geometric Representation
Slide 11: Vector Addition
Slide 12: Scalar Multiplication
Slide 13: The Zero Vector
Slide 14: The Negative of a Vector
Slide 15: Vector Subtraction
Slide 16: More Properties of Vector Algebra
Slide 17: Magnitude of a Vector
Slide 18: Vectors in a Coordinate System
Slide 19: Unit Vectors
Slide 20: Algebraic Representation of Vectors
Slide 21: Algebraic Addition of Vectors
Slide 22: Algebraic Multiplication of a Vector by a Scalar
Slide 23: Example 1
Slide 24: Example 2
Slide 25: A few words of caution
Slide 26: Problems
This document provides an overview of linear algebra, ordinary differential equations, and integral transforms taught in a course at National University of Sciences & Technology. It introduces the Laplace transform, a method for solving initial value problems by transforming differential equations into algebraic equations. Examples show how to take the Laplace transform of basic functions and use properties like shifting to solve problems. The document also discusses the inverse Laplace transform and applications of the method.
The document discusses how to calculate the resulting velocity of a plane when it encounters different wind conditions. It explains that with a tailwind, the plane's velocity relative to the ground is the sum of its velocity through the air and the velocity of the tailwind. With a headwind, the velocities subtract. With a side wind, Pythagorean theorem can be used to calculate the resultant velocity as the hypotenuse of a right triangle formed by the plane's southward velocity and the westward wind velocity. Vector addition is then used to determine the direction of the resulting velocity.
This document discusses linear kinematics and uniformly accelerated linear motion. It defines key concepts like displacement, velocity, acceleration, and their relationships. For uniformly accelerated linear motion where acceleration is constant, it presents the kinematic equations that relate displacement, initial/final velocities, time, and acceleration. These equations can be used to solve problems involving uniformly accelerated one-dimensional motion.
This document discusses rectilinear motion and concepts related to position, velocity, speed, and acceleration for objects moving along a straight line. It defines velocity as the rate of change of position with respect to time and speed as the magnitude of velocity. Acceleration is defined as the rate of change of velocity with respect to time. Examples of position, velocity, speed, and acceleration graphs are shown for an object with the position function s(t) = t^3 - 6t^2. The document also analyzes position versus time graphs to determine characteristics of an object's motion at different points. Finally, it works through an example of analyzing the motion of a particle with position function s(t) = 2t^3 -
The document discusses inner product spaces. Some key points:
- An inner product is a function that associates a number (<u,v>) with each pair of vectors (u,v) in a vector space, satisfying certain properties like symmetry and homogeneity.
- An inner product space is a vector space with an additional inner product structure.
- Properties of inner products include positivity (<v,v>≥0), linearity, and defining the norm (||v||) of a vector.
- Examples show the weighted Euclidean inner product satisfies the inner product properties and define the unit sphere in an inner product space.
This document provides an introduction to vectors, including:
- Vectors have both magnitude and direction, unlike scalars which only have magnitude.
- Vectors can be added and subtracted graphically by drawing them to scale and combining the tips and tails.
- The parallelogram method can be used to add vectors at any angle by forming a parallelogram.
- Vectors can also be broken into rectangular components and added or subtracted using their x and y components rather than graphically.
This document provides an overview of key concepts in kinematics including:
1) Kinematics deals with concepts of motion without considering forces, while dynamics considers the effects of forces on motion.
2) Displacement, speed, velocity, acceleration, and equations of motion for constant acceleration are introduced.
3) Applications include analyzing the motion of falling bodies and interpreting position-time and velocity-time graphs.
The document discusses vector multiplication using the dot product. It provides two formulas for calculating the dot product:
1) a.b = |a| |b| cosθ, where |a| and |b| are the magnitudes of the vectors, θ is the angle between them, and cosθ gives the effectiveness of their interaction. The dot product is largest when the vectors are parallel (θ = 0).
2) For vectors in 3D space, a.b = x1x2 + y1y2 + z1z2, where the x, y, z components of each vector are multiplied and summed.
It provides examples of calculating the dot product using both formulas in different vector
Vectors have both magnitude and direction, represented by arrows. The sum of two vectors is obtained by placing the tail of one vector at the head of the other. If the vectors are at right angles, their dot product is zero, while their cross product is maximum. Scalar multiplication scales the magnitude but not the direction of a vector.
This document discusses key concepts in physics related to speed, velocity, and acceleration. It defines speed and velocity, explaining that velocity includes both magnitude and direction. It describes how to calculate average speed, acceleration, and deceleration. Graphs of speed versus time and velocity versus time are examined, including how to determine acceleration from gradients and distance from areas. Free fall under gravity and the effects of air resistance on terminal velocity are also summarized.
This PPT covers curvilinear motion of an object in a very systematic and lucid manner. I hope this PPT will be helpful for instructor's as well as students.
Lesson 6: Polar, Cylindrical, and Spherical coordinatesMatthew Leingang
"The fact that space is three-dimensional is due to nature. The way we measure it is due to us." Cartesian coordinates are one familiar way to do that, but other coordinate systems exist which are more useful in other situations.
This presentation covers scalar quantity, vector quantity, addition of vectors & multiplication of vector. I hope this PPT will be helpful for Instructors as well as students.
This document provides an overview of classical mechanics. It discusses the main branches of mechanics including kinematics, dynamics, and statistics. It also covers Newton's laws of motion, conservation of momentum and angular momentum, conservative forces, and the law of conservation of energy. The document derives these conservation laws and principles for both single particles and systems of particles. It distinguishes between internal and external forces and inertial frames of reference.
This document contains chapter materials from the textbook "Vector Mechanics for Engineers: Dynamics, Ninth Edition" regarding the kinematics of rigid bodies. It discusses various types of rigid body motion including translation, rotation about a fixed axis, general plane motion, and general motion. It provides definitions and equations for the velocity and acceleration of particles in a rigid body undergoing different types of motion, including examples calculating velocity, acceleration, and angular displacement over time. Key concepts covered include absolute and relative velocity and acceleration in plane motion, instantaneous centers of rotation, and the effects of rotating reference frames.
1) The document discusses curvilinear motion, which refers to motion along a curved path rather than a straight line. It defines position, velocity, and acceleration vectors for particles undergoing curvilinear motion.
2) As an example, it examines the motion of projectiles, noting that the horizontal and vertical components of motion can be treated independently as rectangular components and integrated separately.
3) It then works through an example problem calculating the horizontal distance and maximum height for a projectile fired from the edge of a cliff.
This document discusses the kinematics of particles in rectilinear and curvilinear motion. It defines key concepts like position, displacement, velocity, and acceleration for both continuous and erratic rectilinear motion. Examples are provided to demonstrate how to construct velocity-time and acceleration-time graphs from a given position-time graph, and vice versa. The chapter then discusses general curvilinear motion, defining position, displacement, velocity, and acceleration using vector analysis since the curved path is three-dimensional. Fundamental problems and practice problems are also included.
This document provides an overview of key physics concepts and formulas for vectors and kinematics in two dimensions. It defines important terms like vectors, scalars, displacement, velocity and acceleration. Formulas presented include calculations for velocity, displacement, final velocity, acceleration and trigonometric functions. Metric units and problem-solving steps are outlined, with an example problem walking through applying the concepts and formulas to find the horizontal distance a projectile will land from its starting point.
The document discusses various concepts related to circular motion including angular displacement, angular velocity, angular acceleration, centripetal acceleration, centripetal force, and some applications. Angular displacement is defined as the angle traced by a radius vector in a circular path over time. Angular velocity is the rate of change of angular displacement and centripetal acceleration is the acceleration experienced by an object moving in a circular path directed toward the center. Centripetal force provides the necessary centripetal acceleration for circular motion and is given by mv^2/r. Examples provided include motion of a car on a curved path, banking of roads, and bending of a cyclist in a turn.
The document discusses kinematics of particles, including rectilinear and curvilinear motion. It defines key concepts like displacement, velocity, and acceleration. It presents equations for calculating these values for rectilinear motion under different conditions of acceleration, such as constant acceleration, acceleration as a function of time, velocity, or displacement. Graphical interpretations are also described. An example problem is worked through to demonstrate finding velocity, acceleration, and displacement at different times for a particle moving in a straight line.
Curvilinear motion occurs when a particle moves along a curved path.
Since this path is often described in three dimensions, vector analysis will
be used to formulate the particle's position, velocity, and acceleration
- The document discusses kinematics of rigid body motions, including translation, rotation about a fixed axis, and general plane motion.
- Rigid body translation involves all particles moving with the same velocity and acceleration. For rotation about a fixed axis, particle velocity is tangential to the path and depends on angular velocity and distance from the axis. Particle acceleration has both tangential and radial components.
- General plane motion can be analyzed as a combination of translation and rotation, with the motion of each particle equal to the translation plus rotation about a reference point. Relative velocities depend on choice of reference point.
The document discusses kinematics of particles and projectile motion. It defines projectile motion as any object propelled through space by a force that ceases after launch. Projectile motion involves two-dimensional rectilinear motion with acceleration in the vertical direction due to gravity but no acceleration horizontally. Equations of motion are provided for the horizontal and vertical components. Examples are given of solving projectile motion problems by setting up the appropriate kinematic equations and solving simultaneously for variables like time, velocity, distance, etc.
This problem involves analyzing the motion of a ball thrown vertically upwards in an elevator shaft, and an open-platform elevator moving upwards at a constant velocity.
The key steps are:
1) Use kinematic equations to find the velocity and position of the ball as a function of time, assuming constant downward acceleration due to gravity.
2) Determine the velocity and position of the elevator as a constant upward velocity.
3) Express the relative motion of the ball with respect to the elevator to determine when they meet.
By setting the position of the ball equal to the position of the elevator and solving for time, we can determine when the ball and elevator meet at 26.4 seconds after the ball is thrown
This document contains conceptual problems and their solutions related to motion in two and three dimensions. It discusses concepts such as displacement vs distance traveled, examples of motion with different acceleration and velocity vector directions, and solving problems involving velocity, acceleration, and displacement vectors. Sample problems include analyzing the motion of a dart thrown upward or falling downward, determining displacement vectors, and solving constant acceleration problems for objects moving in two dimensions.
1) The document discusses rotation and angular momentum, providing examples of how angular momentum is conserved in systems where rotational motion occurs, such as a ball on a string or a figure skater spinning.
2) It also discusses how angular momentum applies to planetary orbits, deriving from conservation of angular momentum why orbits are elliptical rather than circular.
3) The document outlines the angular momentum principle and how it can be applied to problems involving torque, angular velocity, and moment of inertia.
This document discusses kinematics of particles, which is the geometry of motion without considering causes of motion. It covers topics like rectilinear and curvilinear motion, determining motion given acceleration functions, uniform and accelerated rectilinear motion, and relative motion of particles. Sample problems are provided to demonstrate solving for position, velocity, acceleration and time using the kinematic equations for different types of motion like uniformly accelerated projectile motion and objects in relative motion.
1. The document discusses various concepts related to one-dimensional motion including position, distance, displacement, speed, velocity, and acceleration.
2. It defines key terms like displacement as the change in position of an object, velocity as a vector quantity that includes both speed and direction, and acceleration as the rate of change of velocity with respect to time.
3. Examples and equations are provided to calculate quantities like average speed, average velocity, and instantaneous velocity from distance-time graphs or data tables.
This document discusses rotational motion and provides definitions and equations for key angular quantities such as angular displacement (θ), angular velocity (ω), angular acceleration (α), torque (τ), moment of inertia (I), angular momentum (L), and rotational kinetic energy. It defines these quantities, gives their relationships to linear motion quantities, and provides examples of how to set up and solve problems involving rotational dynamics.
- The student designed and constructed a model to validate physical laws and analyze a dynamics system using normal and tangential coordinates. Materials like cardboard, motors, and silicone were used.
- The kinematics and components of acceleration are analyzed, defining tangential and normal components. Tangential acceleration is responsible for changes in speed and normal acceleration for changes in direction.
- The model aims to understand curvilinear motion by analyzing the trajectory of particles along curved paths using their normal and tangential components to solve problems. Measurements were taken considering errors.
1. The document discusses planar kinematics and dynamics of rigid bodies, including translation, rotation about a fixed axis, and general plane motion.
2. Rigid body motion is analyzed using absolute motion analysis, which relates the position of points on a rigid body to the body's motion.
3. Applications of rigid body motion include relating the motion of components in machines like trucks, windows, and engines.
The document discusses kinematics of rigid bodies, including definitions of translation, rotation about a fixed axis, and general plane motion. It provides equations relating position, velocity, and acceleration for particles undergoing translation and rotation. Examples are presented of determining velocities and accelerations of points on rigid bodies in translation, rotation, and rolling contact motion. Key concepts covered include absolute and relative velocity diagrams.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
2. The softball and the car both undergo
curvilinear motion.
• A particle moving along a curve other than a
straight line is in curvilinear motion.
Curvilinear Motion: Position, Velocity & Acceleration
3. • The position vector of a particle at time t is defined by a vector between
origin O of a fixed reference frame and the position occupied by particle.
• Consider a particle which occupies position P defined by at time t
and P’ defined by at t + Dt,
r
r
Curvilinear Motion: Position, Velocity & Acceleration
4. 0
lim
t
s ds
v
t dt
D
D
D
Instantaneous velocity
(vector)
Instantaneous speed
(scalar)
0
lim
t
r dr
v
t dt
D
D
D
Curvilinear Motion: Position, Velocity & Acceleration
5. 0
lim
t
v dv
a
t dt
D
D
D
instantaneous acceleration (vector)
• Consider velocity of a particle at time t and velocity at t + Dt,
v
v
• In general, the acceleration vector is not tangent
to the particle path and velocity vector.
Curvilinear Motion: Position, Velocity & Acceleration
6. • When position vector of particle P is given by its
rectangular components,
k
z
j
y
i
x
r
• Velocity vector,
k
v
j
v
i
v
k
z
j
y
i
x
k
dt
dz
j
dt
dy
i
dt
dx
v
z
y
x
• Acceleration vector,
k
a
j
a
i
a
k
z
j
y
i
x
k
dt
z
d
j
dt
y
d
i
dt
x
d
a
z
y
x
2
2
2
2
2
2
Rectangular Components of Velocity & Acceleration
9. • Rectangular components particularly effective
when component accelerations can be integrated
independently, e.g., motion of a projectile,
0
0
z
a
g
y
a
x
a z
y
x
with initial conditions,
0
,
,
0 0
0
0
0
0
0
z
y
x v
v
v
z
y
x
Integrating twice yields
𝑣𝑥 = 𝑣𝑥 0 𝑣𝑦 = 𝑣𝑦 0
− 𝑔𝑡 𝑣𝑧 = 0
𝑥 = 𝑣𝑥 0𝑡 𝑦 = 𝑣𝑦 0
𝑡 −
1
2
𝑔𝑡2
𝑧 = 0
• Motion in horizontal direction is uniform.
• Motion in vertical direction is uniformly accelerated.
• Motion of projectile could be replaced by two
independent rectilinear motions.
Projectile motion
10. A projectile is fired from the edge
of a 150-m cliff with an initial
velocity of 180 m/s at an angle of
30°with the horizontal. Neglecting
air resistance, find (a) the horizontal
distance from the gun to the point
where the projectile strikes the
ground, (b) the greatest elevation
above the ground reached by the
projectile.
SOLUTION:
• Consider the vertical and horizontal motion
separately (they are independent)
• Apply equations of motion in y-direction
• Apply equations of motion in x-direction
• Determine time t for projectile to hit the
ground, use this to find the horizontal
distance
• Maximum elevation occurs when vy=0
Problem
11. SOLUTION:
Given: (v)o =180 m/s (y)o =150 m
(a)y = - 9.81 m/s2
(a)x = 0 m/s2
Vertical motion – uniformly accelerated:
Horizontal motion – uniformly accelerated:
Choose positive x to the right as shown
Problem
12. SOLUTION:
Horizontal distance
Projectile strikes the ground at:
Solving for t, we take the positive root
Maximum elevation occurs when vy=0
Substitute into equation (2) above
Substitute t into equation (4)
Maximum elevation above the ground =
Problem
13. If we have an idea of the path of a vehicle, it is often convenient to analyze
the motion using tangential and normal components (sometimes called
path coordinates).
Tangential and Normal Components
14. • The tangential direction (et) is tangent to the path of the
particle. This velocity vector of a particle is in this direction
x
y
et
en
• The normal direction (en) is perpendicular to et and points
towards the inside of the curve.
v= vt et
r= the instantaneous
radius of curvature
2
dv v
dt r
t n
a e e
v
t
v e
• The acceleration can have components in both the en and et directions
Tangential and Normal Components
r
r
15. • To derive the acceleration vector in tangential
and normal components, define the motion of a
particle as shown in the figure.
• are tangential unit vectors for the
particle path at P and P’. When drawn with
respect to the same origin, and
is the angle between them.
t
t e
e
and
t
t
t e
e
e
D
D
d
e
d
e
e
e
e
e
t
n
n
n
t
t
D
D
D
D
D
D
D
D 2
2
sin
lim
lim
2
sin
2
0
0
Tangential and Normal Components
∆𝜽
16. t
e
v
v
• With the velocity vector expressed as
the particle acceleration may be written as
dt
ds
ds
d
d
e
d
v
e
dt
dv
dt
e
d
v
e
dt
dv
dt
v
d
a t
t
but
v
dt
ds
ds
d
e
d
e
d
n
t
r
After substituting,
r
r
2
2
v
a
dt
dv
a
e
v
e
dt
dv
a n
t
n
t
• The tangential component of acceleration
reflects change of speed and the normal
component reflects change of direction.
• The tangential component may be positive or
negative. Normal component always points
toward center of path curvature.
Tangential and Normal Components
17. A motorist is traveling on a curved
section of highway of radius 2500 ft
at the speed of 60 mi/h. The motorist
suddenly applies the brakes, causing
the automobile to slow down at a
constant rate. Knowing that after 8 s
the speed has been reduced to 45
mi/h, determine the acceleration of
the automobile immediately after the
brakes have been applied.
SOLUTION:
• Define your coordinate system
• Calculate the tangential velocity and
tangential acceleration
• Determine overall acceleration magnitude
after the brakes have been applied
• Calculate the normal acceleration
Problem
18. SOLUTION: • Define your coordinate system
et
en
• Determine velocity and acceleration in
the tangential direction
• The deceleration constant, therefore
• Immediately after the brakes are applied,
the speed is still 88 ft/s
2 2 2 2
2.75 3.10
n t
a a a
Problem
19. In 2001, a race scheduled at the Texas Motor Speedway was
cancelled because the normal accelerations were too high and
caused some drivers to experience excessive g-loads (similar to
fighter pilots) and possibly pass out. What are some things that
could be done to solve this problem?
Some possibilities:
Reduce the allowed speed
Increase the turn radius
(difficult and costly)
Have the racers wear g-suits
Practical Problem
20. SOLUTION:
• Define your coordinate system
• Calculate the tangential velocity and
tangential acceleration
• Determine overall acceleration
magnitude
• Calculate the normal acceleration
The tangential acceleration of the
centrifuge cab is given by
where t is in seconds and at is in
m/s2. If the centrifuge starts from
fest, determine the total acceleration
magnitude of the cab after 10
seconds.
2
0.5 (m/s )
t
a t
Problem
21. In the side view, the tangential
direction points into the “page”
Define your coordinate system
et
en
en
Top View
Determine the tangential velocity
0.5
t
a t
2 2
0
0
0.5 0.25 0.25
t t
t
v t dt t t
2
0.25 10 25 m/s
t
v
Determine the normal acceleration
2 2
2
25
78.125 m/s
8
t
n
v
a
r
Determine the total acceleration magnitude
𝑎𝑚𝑎𝑔 = 𝑎𝑛
2
+ 𝑎𝑡
2
= 78.1252 + 52 2
78.285 m/s
mag
a
𝑎𝑡 = 0.5𝑡 = 0.5 10 = 5 𝑚/𝑠
Problem
22. a) The accelerations would remain the same
b) The an would increase and the at would decrease
c) The an and at would both increase
d) The an would decrease and the at would increase
Notice that the normal
acceleration is much higher than
the tangential acceleration.
What would happen if, for a
given tangential velocity and
acceleration, the arm radius was
doubled?
Critical thinking!
23. By knowing the distance to the aircraft and the
angle of the radar, air traffic controllers can
track aircraft.
Fire truck ladders can rotate as well as extend;
the motion of the end of the ladder can be
analyzed using radial and transverse
components.
Polar Components (Radial and Transverse)
24. • The position of a particle P is
expressed as a distance r from the
origin O to P – this defines the
radial direction er. The transverse
direction e is perpendicular to er
r
v r e r e
• The particle velocity vector is
• The particle acceleration vector is
2
2
r
a r r e r r e
r
e
r
r
Polar Components (Radial and Transverse)
25. • We can derive the velocity and acceleration
relationships by recognizing that the unit
vectors change direction.
r
r e
d
e
d
e
d
e
d
dt
d
e
dt
d
d
e
d
dt
e
d r
r
dt
d
e
dt
d
d
e
d
dt
e
d
r
r
e
r
r
Polar Components (Radial and Transverse)
26. • We can derive the velocity and acceleration
relationships by recognizing that the unit vectors
change direction.
r
r e
d
e
d
e
d
e
d
dt
d
e
dt
d
d
e
d
dt
e
d r
r
dt
d
e
dt
d
d
e
d
dt
e
d
r
𝑣 =
𝑑
𝑑𝑡
𝑟𝑒𝑟 =
𝑑𝑟
𝑑𝑡
𝑒𝑟 + 𝑟
𝑑𝑒𝑟
𝑑𝑡
=
𝑑𝑟
𝑑𝑡
𝑒𝑟 + 𝑟
𝑑𝜃
𝑑𝑡
𝑒𝜃
𝑣 = 𝑟𝑒𝑟 + 𝑟𝜃𝑒𝜃
• The particle velocity vector is
• Similarly, the particle acceleration vector is
e
r
r
e
r
r
dt
e
d
dt
d
r
e
dt
d
r
e
dt
d
dt
dr
dt
e
d
dt
dr
e
dt
r
d
e
dt
d
r
e
dt
dr
dt
d
a
r
r
r
r
2
2
2
2
2
2
r
e
r
r
Polar Components (Radial and Transverse)
27. Concept Quiz
If you are travelling in a perfect
circle, what is always true about
radial/transverse coordinates and
normal/tangential coordinates?
a) The er direction is identical to the en direction.
b) The e direction is perpendicular to the en direction.
c) The e direction is parallel to the er direction.
28. • When particle position is given in cylindrical
coordinates, it is convenient to express the
velocity and acceleration vectors using the unit
vectors .
and
,
, k
e
eR
• Position vector,
𝑟 = 𝑅𝑒𝑅 + 𝑧𝑘
• Velocity vector,
k
z
e
R
e
R
dt
r
d
v R
• Acceleration vector,
k
z
e
R
R
e
R
R
dt
v
d
a R
2
2
Polar Components (Radial and Transverse)
𝑟 = 𝑅𝑐𝑜𝑠𝜃𝑖 + 𝑅𝑠𝑖𝑛𝜃𝑗 + 𝑧𝑘
Rectangular Coordinates
Polar Coordinates
29. Rotation of the arm about O is defined
by = 0.15t2 where is in radians and t
in seconds. Collar B slides along the
arm such that r = 0.9 - 0.12t2 where r is
in meters.
After the arm has rotated through 30o,
determine (a) the total velocity of the
collar, (b) the total acceleration of the
collar.
SOLUTION:
• Evaluate time t for = 30o.
• Evaluate radial and angular positions,
and first and second derivatives at
time t.
• Calculate velocity and acceleration in
cylindrical coordinates.
Problem
30. SOLUTION:
• Evaluate time t for = 30o.
s
869
.
1
rad
524
.
0
30
0.15 2
t
t
• Evaluate radial and angular positions, and first
and second derivatives at time t.
2
2
s
m
24
.
0
s
m
449
.
0
24
.
0
m
481
.
0
12
.
0
9
.
0
r
t
r
t
r
2
2
s
rad
30
.
0
s
rad
561
.
0
30
.
0
rad
524
.
0
15
.
0
t
t
Problem
31. • Calculate velocity and acceleration.
r
r
r
v
v
v
v
v
r
v
s
r
v
1
2
2
tan
s
m
270
.
0
s
rad
561
.
0
m
481
.
0
m
449
.
0
0
.
31
s
m
524
.
0
v
r
r
r
a
a
a
a
a
r
r
a
r
r
a
1
2
2
2
2
2
2
2
2
tan
s
m
359
.
0
s
rad
561
.
0
s
m
449
.
0
2
s
rad
3
.
0
m
481
.
0
2
s
m
391
.
0
s
rad
561
.
0
m
481
.
0
s
m
240
.
0
6
.
42
s
m
531
.
0
a
Problem
𝑣 = 𝑟𝑒𝑟 + 𝑟𝜃𝑒𝜃
32. SOLUTION:
• Define your coordinate system
• Calculate the angular velocity after
three revolutions
• Determine overall acceleration
magnitude
• Calculate the radial and transverse
accelerations
The angular acceleration of the
centrifuge arm varies according to
where is measured in radians. If the
centrifuge starts from rest, determine the
acceleration magnitude after the gondola
has travelled two full rotations.
2
0.05 (rad/s )
Problem
33. In the side view, the transverse
direction points into the “page”
Define your coordinate system
e
er
er
Top View
Determine the angular velocity
Evaluate the integral
2
0.05 (rad/s )
𝜃𝑑𝜃 = 𝜃𝑑𝜃
Acceleration is a function
of position, so use:
2(2 )
2 2
0 0
0.05
2 2
(2)(2 )
0 0
0.05 d d
2
2
0.05 2(2 )
Problem
𝑎𝑑𝑠 = 𝑣𝑑𝑣
Similar to the expression
34. er
Determine the angular velocity
Determine the angular acceleration
2.8099 rad/s
2
2
0.05 2(2 )
2
0.05 = 0.05(2)(2 ) 0.6283 rad/s
Find the radial and transverse accelerations
2
2
2
2
0 (8)(2.8099) (8)(0.6283) 0
63.166 5.0265 (m/s )
r
r
r
a r r e r r e
e e
e e
2
2 2 2
( 63.166) + 5.0265
mag r
a a a
2
63.365 m/s
mag
a
Magnitude:
Problem
35. You could now have additional acceleration terms. This might
give you more control over how quickly the acceleration of the
gondola changes (this is known as the G-onset rate).
What would happen if you
designed the centrifuge so
that the arm could extend
from 6 to 10 meters?
r
2
2
r
a r r e r r e
Problem