An elevator cable breaks when a 920-kg elevator is 24 m above a huge spring (k = 2.2 X 10 5 N/m) at.

An elevator cable breaks when a 920-kg
elevator is 24 m above a huge spring (k = 2.2 X 105N/m) at the
bottom of the shaft. Calculate (a) the work done by gravity on the elevator
before it hits the spring, (b) the speed of the elevator just before striking
the spring, and (c) the amount the spring compresses (note that work is done by
both the spring and gravity in this part).