In this system, a =500mm, b = 240mm, c = 30mm, r = 200mm. The coefficient of static friction for the block is 0.4. Will a 1 kN force at P keep the disc in equilibrium with a coupled moment, Mo = 150 Nm? What force is necessary for static equilibrium if the coupled moment, Mo is 50 Nm? The brake is defined as self-locking, describe the conditions when P is less than zero and the disc remains in static equilibrium. Relate this to the static coefficient of friction.

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