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Rod OA rotates counterclockwise at a constant angular rate 4 rad/s. The double collar B is...

Rod OA rotates counterclockwise at a constant angular rate θ = 4 rad/s. The double collar B is pin-connected together such that one collar slides over the rotating rod and the other collar slides over the circular rod described by the equation r = (1.6 cos θ) m. If both collars have mass of 0.5 kg, determine the force which the circular rod exerts on one of the collars and the force that OA exerts on the other collar at the instant 0 45°. Motion is in horizontal plane.

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