A 16° wedge A of negligible weight is placed between two 175-lb blocks B and C which

Question:

A 16° wedge A of negligible weight is placed between two 175-lb blocks B and C which are at rest on inclined surfaces as shown. The coefficient of static friction is 0.40 between both the wedge and the blocks and block C and the incline. Determine the magnitude of the force P for which motion of the wedge is impending when the coefficient of static friction between block B and the incline is

(a) 0.40,

(b) 0.60.

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