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September 20, 2014

Homework Help: Physics

Posted by John on Wednesday, November 7, 2012 at 6:50pm.

A freight train has a mass of 1.7 10^7 kg.
If the locomotive can exert a constant pull
of 5.2 10^5 N, how long would it take to
increase the speed of the train from rest to
74.6 km/h? Disregard friction.
Answer in units of s

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