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October 23, 2014

Homework Help: physics

Posted by thalia on Wednesday, November 11, 2009 at 8:06pm.

a box with mass 20kg rests on a frictionless ramp with a 15degree slope. a mover pulls up on a rope attached to the box to pull it up the incline. if the rope makes a 40 degree angle with the horizontal, what's the smallest force that the mover will have to exert to move the box up the ramp?

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