Two identical freight cars roll without friction (one at 1 m/s, the other at 2 m/s)toward each other on a level track. They collide, couple together, and roll away in the direction of

Question

Quizplus · Accepted Answer

The direction of the final motion will be in the direction of the car with the greater momentum, which is the faster car. Since momentum is conserved and the faster car has a greater momentum due to its higher velocity, the coupled cars will move in the direction of the faster car after the collision.

Two Identical Freight Cars Roll Without Friction (One at 1