A bag of wheat weighs 200 kg. To what height should it be raised so that its potential energy may be 9800 joules ? (`g = 9.8 ms^(-2)`)

To what height should a box of mass 150 kg be lifted, so that its potential energy may become 7350 joules ? ( g = 9.8 m//s^(2) ).

A bag of wheat weights 75 kg. Calculate the hight to which it should be raised so that its potential energy is 7350 J. (Given g= 9.8 m//s^(2))

A mass of 20 kg is at a height of 8 m above the ground. Then the potential energy possessed by the body is: [Given g = 9.8 ms^(-2) ]

A ball of mass 200 g falls from a height 5 metres. What is its kinetic energy when it just reaches the ground ? ( g = 9.8 m//s^(2) ).

An object is thrown vertically upwards with velocity of 20ms^(-1) . At what height will its kinetic energy and potential energy be equal? (g=10ms^(-2))

A box of books weighing 80 kg is on a table 75 cm high. What is its potential energy relative to the floor?

A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain ? ( g = 9.8 m//s^(2) ).

A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground ? (g=9.8ms^(-2))