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April 19, 2014

Homework Help: Physics

Posted by Lesley on Sunday, February 27, 2011 at 6:19pm.

How much work must be done to accelerate an 8x105 kg train: a) from 10 m/s to 15 m/s; b) from 15 m/s to 20 m/s; c) to a stop an initial speed of 20 m/s?

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