Physics, 26.01.2021 21:10 arlabbe0606
An empty train car moving at 21 m/s collides with a loaded train car initially at rest that has twice the mass of the empty car. The two cars couple together.
a) What is the final velocity of the cars after the collision? 7 m/s
b) Is kinetic energy conserved in this collision? If so, how do you know? If not, why is there a difference?
Answers: 2
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An empty train car moving at 21 m/s collides with a loaded train car initially at rest that has twic...
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