Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a

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Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a third, stationary boxcar. 

a. What is the final speed of the three coupled boxcars? 

b. What fraction of the cars' initial kinetic energy is trans- formed into thermal energy?

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College Physics A Strategic Approach

ISBN: 9780321595492

2nd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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