Paige and Julia are playing volleyball. Paige is in spiking position when Julia gives her the perfect set. The 0.226-kg volleyball is 2.29 m above the ground and has a speed of 1.06 m/s. Paige spikes the ball, doing 9.89 J of work on it. Determine a) the total mechanical energy of the ball after the spike, and b) the speed of the ball upon hitting the ground on the opponent's side.

Question

Paige and Julia are playing volleyball.  Paige is in spiking position when Julia gives her the perfect set.  The 0.226-kg volleyball is 2.29 m above the ground and has a speed of 1.06 m/s. Paige spikes the ball, doing 9.89 J of work on it. Determine a) the total mechanical energy of the ball after the spike, and b) the speed of the ball upon hitting the ground on the opponent's side.