A basketball of 0.635 kg is dropped out of a window which is 5.64 m above the ground. The ball is caught by a person whose hands are 1.59 m above the ground.
i) Determine how much work is done on the ball by its weight? Determine the gravitational potential energy of the basket-ball, relative to the ground, if it is (ii) released and (iii) caught? (iv) Determine the change (PEfinal - PE initial) in the gravitational potential energy of the ball?