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A block of weight W rests as shown in a wedge of negligible weight

Civil Engineering

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A block of weight W rests as shown in a wedge of negligible weight. knowing that the coefficient of static friction is 0.25 at all surfaces of contact, P= 75 lb, and θ=7°, find the weight W at impending motion.

a. Draw a free body diagram of the forces action on the wedge.

b. Draw the force triangle and solve using trigonometry (do not solve using components).