Question

Two cars collide with each other. Before the collision, one car (m = 1300 kg) is going north at 30 m/s and the other car (m = 900 kg) is going south at 15 m/s. What is the momentum of the system made up of the two cars after the collision?

A. 25,500 kgm/s north
B. 52,500 kgm/s south
C. 52,500 kgm/s north
D. 25,500 kgm/s south