Solve Prob. 8.48 assuming that force P is directed to the left. Problem 8.48: An 18-kg mass is hung from a lever which rests against a 10° wedge at A and is supported by a frictionless hinge at C. Knowing that the coefficient of static friction is 0.25 at both surfaces of the wedge and that for the position shown the spring is stretched 100 mm, determine

(a) The magnitude of the force P for which motion of the wedge is impending,

(b) The components of the corresponding reaction at C.

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400 mm 225 mm 300 mm 50 mm Is kg 3.5 kN/m