Two coupled boxcars are rolling along at 4.0 m/s when they collide with and couple to...

Question

Question

Two coupled boxcars are rolling along at 4.0 m/s when they collide with and couple to a third, stationary boxcar.

What is the final speed of the three coupled boxcars?

What fraction of the cars' initial kinetic energy is transformed into thermal energy?

Answer 1

Answer #1

Answer 2

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