What is the final velocity of the combined bumper cars
A 225 kg red bumper car is moving at 3.0 m/s. It hits a
stationary 180 kg blue bumper car. The red and blue bumper
cars combine and hit a stationary green bumper car of mass
150 kg. The red, blue, and green bumper cars all combine.
0.93 m/s
1.2 m/s
1. Don's
2.7 m/s
