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 .

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

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

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

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