A ball of mass m is dropped from a cliff of height H. The ratio of its kinetic energy to the potential energy when it is fallen through a height 3/4 H is

Find the kinetic energy of the disc when it is fallen of a height h .

A ball of mass m is dropped from a height of 20 m . The ball loses 20 per cent of its kinectic energy in striking the ground . What will be the height to which the ball will bounce ? Where does this lost energy go ?

A stone is projected vertically upward to reach maximum height h. The ratio of its kinetic energy to its potential energy at a height (4)/(5) h, will be

A stone is projected vertically upwards to reac a maximum heiht h. What is the ratio of its kinetic energy to its potential energy at a heigth of 3/5h ?

A body of mass 10 kg is dropped from a height of 20 m. (Take g = 10 3/s^2) Its kinetic energy when it is 8 m abgve the ground

A ball at rest is dropped from a height of 12 m . If it looses 25 % of its kinetic energy on striking the ground and bounces back to a height 'h'. The value of 'h' is equal to

A body of mass m is taken from earth surface to the height h equal to radius of earth, the increase in potential energy will be