A 0.160 kg pool ball (Ball A) is rolling North at 0.500 m/s. It strikes a second ball (Ball B) which has a mass of 0.180 kg. Initially Ball B is not moving. After the collision, Ball A rebounds to the South at 0.023 mls. Ball B rolls North. Treat movement towards the North as the Positive direction. The momentum of Ball A before the collision was: l:| ! kg m 3'1 The momentum of Ball B before the collision was: l:| kg m 5-1 The velocity of Ball B after the collision was: mls The collision was