A 10-kg block A is released from rest 2 m above the 5-kg plate P, which can slide freely...

A 10-kg block A is released from rest 2 m above the 5-kg plate P, which can slide freely along the smooth vertical guides BC and DE. Determine the velocity of the block and plate just after impact. The coefficient of restitution between the block and the plate is e = 0.75. Also, find the maximum compression of the spring due to impact. The spring has an unstretched length of 600 mm.