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August 29, 2015

Homework Help: physics

Posted by smh on Thursday, February 16, 2012 at 5:39pm.

A freight train has a mass of 1.5 107 kg. If the locomotive can exert a constant pull of 6.9 105 N, how long does it take to increase the speed of the train from rest to 72 km/h?


min

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