A small winch is used to raise a 120-lb load. Find (a) the magnitude of the vertical force P that should be applied at C to maintain equilibrium in the position shown, (b) the reactions at A and B, assuming that the bearing at B does not exert any axial thrust.

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30 10 in. 3 in. 10 in 9 in. 8 in 10 in. 120 lb