1. A ball is projected with kinetic energy E at an angle of 45° to the horizontal. At the highest point during its flight, its kinetic energy will be 

2. Neglecting the air resistance, the time of flight of a projectile is determined by:

3. The horizontal range of a particle thrown from the ground is four times the maximum height. The angle of projection with the vertical is:

4. An object is thrown along a direction inclined at an angle of 45 with the horizontal direction. The horizontal range of the particle is equal to

5. A projectile fired with initial velocity u at some angle θ has a range R. If the initial velocity be doubled at the same angle of projection, then the range will be

6. A ball is projected with velocity v₀ at an angle of elevation 30°. Mark the correct statement.

7. In the motion of a projectile freely under gravity, its

8. A moves with 65 km/h while B is coming back of A with 80 km/h. The relative velocity of B with respect to A is 

9. The range of a projectile for a given initial velocity is maximum when the angle of projection is 45°. The range will be minimum, if the angle of projection is

10. Two bodies are projected with the same velocity. If one is projected at an angle of 30° and the other at an angle of 60° to the horizontal, the ratio of the maximum heights reached is

11. A projectile thrown with a speed v at an angle θ has a range R on the surface of earth. For same v and θ, its range on the surface of moon will be (acceleration due to gravity on moon=

12. A stone is just released from the window of a train moving along a horizontal straight track. The stone will hit the ground following

13. Path of a projectile as seen from another projectile :

14. A bullet is fired with a speed of  in order to hit a target 100 m away. If  the gun should be aimed:

15. What determines the nature of the path followed by the particle?

16. A bomb is dropped from an aeroplane flying horizontally. The path of the bomb as seen by the pilot will be (neglect air friction)

17. The velocity of a projectile at the initial point of projection is (2i + 3j) m/s. Its velocity (in m/s) at landing point  is:

18. A body projected with velocity u with an angle of projection θ . Change in velocity after the time (t) from the projection is:

19. At the top of the trajectory of a projectile, the magnitude of the acceleration is

20. The range of a particle when launched at an angle of 15° with the horizontal is 1.5 km. What is the range of the projectile when launched at an angle of 45° to the horizontal 

21. Which of the following sets of factors will affect the horizontal distance covered by an athlete in a long–jump event

22. At the highest point of trajectory in the ground to the ground projectile, the angle between gravitational acceleration and momentum is

23. If the initial velocity of a projectile be doubled, keeping the angle of projection same, the maximum height reached by it will

24. The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is:

25. In projectile motion, accelerations of the projectile when it is gaining height and losing height respectively are

26. A particle moves in a circular path with decreasing speed. Choose the correct statement

27. A bomb is dropped from an aeroplane moving horizontally at constant speed. When air resistance is taken into consideration, the bomb 

28. Galileo, in his book Two new sciences, stated that for elevations that exceed or fall short of 45° by equal amounts, the ranges?

29. In a projectile motion, velocity at maximum height is 

30. A body is thrown horizontally with a velocity √(

from the top of a tower of height h. It strikes the level ground through the foot of the tower at a distance x from the tower. The value of x is: