Question

Two objects collide head on. Assume they have equal masses but unequal velocities, such that the one coming in from the right is moving at 95.97 m/s toward the left, and the one coming in from the left is moving at 39.75 m/s toward the right.

After the collision, what is the velocity of the one that came in from the left? (Use + to the right and - to the left to distinguish direction in your answer.)

Answer 1

Here we apply concept of elastic collision and principle of conservation of linear momentum and coefficient of restitution.