Question

A rifle fires two 4 g bullets at 2 kg target. The target is initially at rest and free to slide on a frozen pond while the gun is fixed to the ground. Each bullet leaves the rifle at 225 m/s and is imbedded in the target. Each collision conserves momentum.

Each bullet strike is like a collision between carts that stick together.

The rifle itself is irrelevant to the problem. Just consider the bullets and the target.

Find the final velocity of the target after each bullet strike, Ignore any friction between the target and the pond and any air resistance.

Answer 1