A mass m1 = 8.99 kg at rest on a horizontal frictionless surfaceand connected to a wall by a spring with k = 70.0N / m collides with a second mass m2 = 5.00 kg that moves to the right to v0 = 17.0 m / s, the and stick together
a) What is the maximum compression of the spring.
b) How much time elapses after the collision for the spring reaches its maximum compression.