Question

Car 1 is parked when it is hit by Car 2. The momentum of Car 2 before the collision was 50 kg m/s. The momentum of Car 1 after the collision is 10 kg m/s. What is the momentum of Car 2 AFTER the collision?

Answer 1

conserve momentum:

0 + 50 = 10 + p

Answer 2

40 kg m/s