© Copyright, Department of Physics, University of Illinois at Urbana-Champaign

Bullet Penetrates Can

A bullet of mass 0.012 kg and initial speed 400 m/s penetrates an initially stationary pop can of mass 0.047 kg and emerges with a speed 290 m/s.

How fast is the can moving after the bullet emerges? (Friction between the can and the surface is negligible.)

vcanf = m/s