1) A mass of 2.5 kg is dropped from a height of 3.21 meters
above a vertical spring anchored at its lower end to the floor. If
the spring constant is 33 N/cm, how far to the nearest tenth of a
centimeter is the spring compressed?
B) If the top of the spring in the preceding problem is 1.56
meters above the ground and a 4.6 kg mass is dropped from a height
of 3.62 meters above the ground, what is the ball's kinetic energy,
to the nearest joule, just before the mass strikes the spring?