A ball of mass 32.0 grams drops to the floor from a height of 1.50 metres.

(a) Use the Principle of Conservation of Energy to calculate the speed it hits the floor. You may assume that air resistance is negligible

(b) Calculate the kinetic energy when it hits the floor

(c) The ball loses 25% of its mechanical energy when it bounces. How high does it bounce from the ground? Calculate your answer using considerations of energy, not kinematics.