A ball falls under gravity from a height of 10m with an initial velocity. It collides with the ground,loses 50% of its engery and then rises to the same height.Find the initial velocity.

A body dropped from a height h with an initial speed zero reaches the ground with a velocity 3km/h . Another identical body was dropped from the same height with an initial speed of 4 km/h. It will reach the ground with a velocity

A ball is dropped from a height of 20m. it rebounds to a height on 10m. Calculate the loss of energy of the ball

A body falling from a height of 10 m rebounds .from a hard floor. It loses 20% of its energy in impact. What is the height to which it would rise after the .impact?

A ball is dropped from a height of 90 m on a floor. At each collision with the floor, the ball loses one tenth of its speed. Plot the speed time graph of its motion between t = 0 to 12 s.

A body falling from a height travels 40 m in the last 2s of its fall to ground. The height in meter is

A rain drop of radius 2 mm falls from a height of 500 m above the ground. It falls with decreasing acceleration (due to viscous resistance of the air) until at half its original height, it attains its maximum (terminal) speed, and moves with uniform speed thereafter. What is the work done by the gravitational force on the drop in the first and second half of its journey? What is the work done by the resistive force in the entire journey if its speed on reaching the ground is 10 m s-^1 ?

A ball is projected vertically upward with a speed of 50 m/s. Find the time to reach the maximum height,

A ball is dropped from rest at a height 12m.If is loses 25% of its kinetic engeryt of striking the ground,Calculate the height to which it bounces.

An elastic ball is dropped from a height to 100m.It lose s 20% of its energy .To what height will the ball rebound?

A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 ms^-2 , with what velocity will it strike the ground? After what time will it strike the ground?