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April 18, 2014

Homework Help: physics

Posted by Anonymous on Monday, May 2, 2011 at 7:02pm.

A box of unknown mass is placed at rest at the top of a 3m long ramp that is inclined at 30 degrees, and it slides to the bottom in 2s. What is the acceleration of the box, what is the coeff of kinetic friction between the box and the plank?

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