The ball is projected vertically down with a velocity of 10sqrt(3)m/s from a height of 20m .On the hitting the ground if it loses 40% of its energy the height to which it bounces is (g=10ms^(-2))

A ball is projected vertically down with a velocity of 10sqrt(3) m//s from a height of 20 m. On hitting the ground if it loses 40 % of its energy, the height to which it bounces is (g = 10 ms^(-2))

A ball is released from a height of 10 m. If it loses 20% of its energy on hitting the ground, the height to which it bounces is

A ball is projected vertically down with an initial velocity from a height of 20m on to a horizontal floor. During the impact it loses 50% of its energy and rebounds to the same height. The velocity of projection is (g=10ms^(-2))

A ball is thrown vertically downward with a velocity of 20m/s from the top of a tower,It hits the ground after some time with a velocity of 80m/s .The height of the tower is : (g=10m/g^(2))