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September 20, 2014

Homework Help: physics

Posted by ashlee on Thursday, September 2, 2010 at 9:55am.

a man has only 4 simple pulleys to lift a heavy load of 6000N. in roder to lift the load easily, he combines the pulleys (3 moveable, 1 fixed). given that the frictional forces are 300N, what force must he apply in order to lift the load?

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