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April 18, 2014

Homework Help: physics

Posted by as01 on Monday, November 21, 2011 at 12:36pm.

An engine of mass 5000 kg pulls a train of ten trucks each of mass 2000 kg along a horizontal track. Assume that the frictional forces to be 5000 N and that the engine exerts a force of 50 000 N on the rails. If the trucks are numbered from 1 to 10 starting with the one next to the engine calculate:

(a) the net total accelerating force
(b) the acceleration of the train
(c) the force of truck 6 on truck 7
(d) the force of truck 9 on truck 8

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