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2.11.5 A uniform rod rests with one end on a rough horizontal surface, friction coefficient u, and the other end is supported by a force

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2.11.5 A uniform rod rests with one end on a rough horizontal surface, friction coefficient u, and the other end is supported by a force that is exerted perpendicu larly to the rod. Prove that if a is the maximum angle of inclination of the rod just before it starts sliding, a is given by the equation 2/ tana - tana + u = 0. What 1 can you deduce for the case / =

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