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June 30, 2015

Homework Help: physics

Posted by Tully on Sunday, March 16, 2014 at 3:19pm.

A 28000 kg railroad freight car collides with a stationary caboose car. They couple together, and 20 percent of the initial kinetic energy is dissipated as heat, sound, vibrations, and so on. What is the mass of the caboose?

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