Solution: A 7600-kg boxcar traveling 15 m/s strikes a second car. The two stick together and move off with a speed of 6.6 m/s. What is the mass of the second car?

Problem

A 7600-kg boxcar traveling 15 m/s strikes a second car. The two stick together and move off with a speed of 6.6 m/s. What is the mass of the second car?