The pendulum consists of a disk of weight W₁ and a slender rod of weight W₂. Determine the horizontal and vertical components of reaction that the pin O exerts on the rod just as it passes the horizontal position, at which time its angular velocity is ω.

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Given: W₁ W2 = 15 lb = 10 lb a = 0.75 ft = 8 b = 3 ft rad S