3. A projectile is an object launched into space under the influence of gravity only.
4. A football is kicked at an angle of θ with respect to the horizontal. The acceleration is -9.8 m/s2 at all times.
5. At the highest point of the trajectory, the ball’s velocity is perpendicular to its acceleration.
6. A projectile fired horizontally will strike the ground in the same time as one dropped vertically from the same position if we neglect the effects of air resistance.
7. The range of a projectile is affected by its initial speed only.
8.
9. (2 points) What is the initial vertical velocity, viy of the projectile?
10. (3 points) How far does the projectile travel horizontally (range), x before it hits the ground?
11.
12. (2 points) What is horizontal velocity of the shell as it hits the ground?
13. (2 points) What is vertical velocity of the shell as it hits the ground?
14.
15. (2 points) What is the initial vertical velocity, viy of the football?
16. (3 points) What is initial speed (magnitude of the velocity) of the football?
17.
18. A projectile fired at any angle above the ground has a constant horizontal velocity in all points. – T
19.
20. A projectile is an object launched into space under the influence of gravity only. – T
21. A football is kicked at an angle of θ with respect to the horizontal. The acceleration is -9.8 m/s2 at all times. – T
22. At the highest point of the trajectory, the ball’s velocity is perpendicular to its acceleration. – T
23. A projectile fired horizontally will strike the ground in the same time as one dropped vertically from the same position if we neglect the effects of air resistance. – T
24. The range of a projectile is affected by its initial speed only. – F
25.
26. (2 points) What is the initial vertical velocity, viy of the projectile?
27. (3 points) How far does the projectile travel horizontally (range), x before it hits the ground?
![556260047625Test No.:_________00Test No.:_________1228725-9525PHILIPPINE SCIENCE HIGH SCHOOL – Main Campus<br />Physics 2 – Advanced Topics in Physics I<br />LONG TEST 3: PROJECTILE MOTION<br />,[object Object],Direction:<br />Write T if the statement is true and F if it is false. Note that air resistance is neglected in all statements.<br />,[object Object]](https://image.slidesharecdn.com/03projectilemotion-110801065941-phpapp02/85/Physics-2-LT3-Projectile-Motion-Solutions-1-320.jpg)
![The time in going up of a projectile is the same to its time in going down back to its initial level. The range of a projectile is maximum if it is fired at angle of 45o.<br />A projectile fired at an angle of 25o covers the same range if it is fired at an angle of 65o with greater initial speed.<br />,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)