Two hockey players are about to collide on the ice. One player has a mass of 66 kg and is traveling at 1.5 m/s north. The other has a mass of 75 kg and is traveling at 1.2 m/s south. The system consists of the two hockey players.
According to the law of conservation of momentum, what is the total momentum of the system after they collide? Assume the collision is an elastic collision.
A. 189 kg·m/s south
B. 9 kg·m/s north
C. 189 kg·m/s north
D. 9 kg·m/s south