A 4 kg mass moves at 3 m/s toward a 2 kg object that moves at 2 m/s in the opposite direction. The surface that they travel on is frictionless..
a) If the 4kg mass bounces back at 1 m/s, what is the final velocity of the 2 kg puck? type your answer...
m/s
b) Describe the elasticity of the collision: choose your answer...