Knowing that WA = 40lb, WB = 52 lb, and ? =25°, determine
(a) Whether the system is in equilibrium,...

Question

Knowing that WA = 40lb, WB = 52 lb, and ? =25°, determine
(a) Whether the system is in equilibrium, 
(b) The magnitude and direction of the friction force.

David · Accepted Answer

a) Let consider mass of A block is m1 and the mass of B block is m2. Now the free body diagram of m1 
mass and m2 mass is given below: 
Here T is the tension in the string, f is the acting friction in the inclined plane, N is the normal force 
acting to the plane.

Knowing that WA = 40lb, WB = 52 lb, and ? =25°, determine (a) Whether the system is in equilibrium, (b) The magnitude and direction of the friction force.

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