The man A has a weight of 175 lb and jumps from rest at a height h = 8 ft onto a platfor...

The man A has a weight of 175 lb and jumps from rest at a height h = 8 ft onto a platform P that has a weight of 60 lb. The platform is mounted on a spring, which has a stiffness k = 200 lb/ft. Determine (a) the velocities of A and P just after impact and (b) the maximum compression imparted to the spring by the impact. Assume the coefficient of restitution between the man and the platform is e = 0.6, and the man holds himself rigid during the motion.