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October 21, 2014

Homework Help: physics

Posted by tionne on Tuesday, November 13, 2012 at 8:25pm.

A freight train has a mass of 1.5 x 10^7 kg . If the locomotive can exert a constant pull of 7.5 X 10^5 N, how long does it take to increase the speed of the train from rest to 80 km /h?

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