November 28, 2015

Homework Help: physics

Posted by jena on Sunday, January 9, 2011 at 5:38pm.

A freight train has a mass of 3.2 107 kg.
If the locomotive can exert a constant pull
of 7.1 105 N, how long would it take to
increase the speed of the train from rest to
74.6 km/h? (Disregard friction.)

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