Question: Crates A and B weigh 200 lb and 150 lb, respectively. They are connected together with a cable and ?placed on the inclined plane. If

Crates A and B weigh 200 lb and 150 lb, respectively. They are connected together with a cable and ?placed on the inclined plane. If the angle ? is gradually increased, determine ? when the crates begin to slide. The coefficients of static friction between the crates and the plane are ?_A = 0.25 and ?_B = 0.35.

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