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April 19, 2014

Homework Help: physics

Posted by james on Friday, August 24, 2012 at 1:47am.

A train is speeding along a straight, level track at +20.0 m/s when the engineer applies the brakes, which results in an acceleration of -0.894 m/s2 as long as the train is in motion. How far does the train move during the 70 sec after the brakes are first applied?

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