5. A 5 kg block is suspended from a 200 N/m spring. A 2 kg block is travelling at 10 m/s when it collides elastically with the 5 kg block. (a) What is the initial stretch of the spring? How much...

Extracted text: 5. A 5 kg block is suspended from a 200 N/m spring. A 2 kg block is travelling at 10 m/s when it collides elastically with the 5 kg block. (a) What is the initial stretch of the spring? How much potential energy is stored in the spring at equilibrium? Natural length (b) What are the velocities of the 5 kg and 2 kg blocks just after the collision? Equilibrium length (c) What is the compression/stretch of the spring from its "natural" length at the instant the 5 kg block's speed is zero? 10m/s at collision