The document provides information about motion under uniform acceleration including:
- Four kinematic equations that describe motion with constant acceleration in one dimension.
- Derivations of the equations from the concept of displacement being equal to area under the velocity-time graph.
- An example problem using one of the equations to calculate deceleration from initial velocity, final velocity, and displacement.
2. 10 Snail 2.2x10 6 Walking speed 2.5x10 2 Sprinter 1x10 -3 Typical car speed 3x10 8 Jet airliner 1.5 Earth around the Sun 22 Electron around a nucleus 3x10 4 Light Speed ms -1
3. 1x10 -3 Snail 1.5 Walking speed 10 Sprinter 22 Typical car speed 2.5x10 2 Jet airliner 3x10 4 Earth around the Sun 2.2x10 6 Electron around a nucleus 3x10 8 Light Speed ms -1
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8. QUESTION one: If a car accelerates from 5 m/s to 15 m/s in 2 seconds, what is the car's average acceleration? QUESTION two: How long does it take Kitty to accelerate an object from rest to 10 m/s if the acceleration was 2 m/s 2 ? QUESTION three: Ella was running at 16m/s on the pavement. She starts to run on the sand and now has a speed of 10m/s. This change in speed took 2 seconds. What is her “acceleration”? Warm up questions
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30. Equation Three: What is the displacement, s of this object? Time (s) Velocity (ms -1 ) The area below the line of this graph tells you the displacement of the object: Total area: rectangle + triangle s = ut + (v-u) ½ t MULTIPLE OUT THE BRACKETS! V U t
