Question: If the coefficient of static friction at B is ? s = 0.3, determine the largest angle and the minimum coefficient of static friction at

If the coefficient of static friction at B is ?_s = 0.3, determine the largest angle and the minimum coefficient of static friction at A so that the roller remains self-locking, regardless of the magnitude of force P applied to the belt. Neglect the weight of the roller and neglect friction between the belt and the vertical surface.

30 mm

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