PhysicsBootcampTest2ReviewP5(Momentum).avi

This video is part of the Physics Bootcamp series. It covers the fifth problem of the second review test for this course. A 100 kg running back moving at 5 m/s to the right gets tackled by a 140 kg lineman moving at 3 m/s to the left. What is their combined speed and direction after the collision and the % loss of KE of the system? What is the velocity of each if they experience a perfectly elastic collision?