Car a (Mass = 1000 Kg) Moves to the Right

Multiple Choice

Car A (mass = 1000 kg) moves to the right along a level, straight road at a speed of 6.0 m/s. It collides directly with car B (mass = 200 kg) in a completely inelastic collision. What is the momentum after the collision if car B was initially at rest?

A) 10. KN-s to the right
B) 8.0 KN-s to the left
C) 6.0 KN-s to the right
D) 2.0 KN-s to the right
E) zero