When an apple falls from a tree what happens to its gravitational potential energy just as it reaches the ground? After it strikes the ground?

What is meant by gravitational potential energy ? Derive an expression for it for a body placed at a height above the ground.

When a person jumps from a tree to the ground what happens to the momentum of the person upon striking the ground ?

A boy has a mass of 55 kg. He climbs 10 m up a tree. What is his gravitational potential energy?

An apple falls from a tree because of gravitational between the earth and apple. If F_(1) is the magnitude of force exerted by the earth on the apple and F_(2) is the magnitude of force exerted by apple on earth, then

A body is falling under gravity . When it loses a gravitational potential energy U , its speed is v . The mass of the body shell be

A ball is gently dropped from a height of 20m . If its velocity increases uniformly at the rate of 10 m//s^(2) , with what velocity will it strike the ground ? After what time will it strike the ground ?

A particle is released from height H . At certain height from the ground its kinetic energy is twice its gravitational potential energy. Find the height and speed of particle at that height.

A particle falls from rest under gravity. Its potential energy with respect to the ground (PE) and its kinetic energy (KE) are plotted against time (t). Choose the correct graph.

A particle falls from rest under gravity. Its potential energy with respect to the ground (PE) and its kinetic energy (KE) are plotted against time (t). Choose the correct graph.