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November 28, 2014

Homework Help: Physics

Posted by Yuki on Wednesday, November 16, 2011 at 5:06am.

A freight car with a mass of 29,000 kg rolls down an inclined track through a vertical distance of 2.8 m. At the bottom of the incline, on a level track, the car collides and couples with an identical freight car that was at rest. What percentage of the initial kinetic energy is lost in the collision?

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