A ball at rest is dropped from a height of `12m`. It loses `25%` of its kinetic energy on striking the ground. Find the height to which it bounces.

A stone is dropped from height h. Arrive at an expression for the time taken to reach the ground.

A ball is dropped from a height of 48 m and rebounds 2/3 of the distance it falls. If it continues to fall and rebound in this way, the distance that the ball travels before coming to rest is :