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April 20, 2014

Homework Help: Mechanics for A-level?

Posted by Jat on Saturday, April 7, 2012 at 2:43am.

A particle of mass m can just rest on a rough plane inclined at 30 degree to the horizontal without slipping down. show that the least horizontal force needed to maintain its position if the inclination is increased to 45 degree is 0.268mg.

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