Motion in a Pla...

A ball is projected horizontally with a velocity of 5 ms^-1 from the top of a building which is 19.6 m high. How long will the ball take to hit the ground?

From the top of a tower of height 40 m, a ball is projected upwards with a speed of 20 ms^–1 at an angle of 30° with the horizontal. If g = 10 ms^–2, then after how much time will the ball hit the ground?

When a projectile is at the highest point of its trajectory, the directions of its velocity and acceleration are

Which one of the following statements is NOT true about the motion of a projectile?

A body is projected with a kinetic energy K at an angle of 60° with the horizontal. Its kinetic energy at the highest point of its trajectory will be

It is possible to project a particle with a given velocity in two possible ways, so as to make it pass through a point P at a distant r from the point of projection. The product of the time durations taken to reach this point in the two possible ways is proportional to