Concept explainers
Solve Prob. 16.127 for θ = 90°.
16.127 The test rig shown was developed to perform fatigue testing on fitness trampolines. A motor drives the 200-mm radius flywheel AB, which is pinned at its center point A, in a counterclockwise direction with a constant angular velocity of 120 rpm. The flywheel is attached to slider CD by the 400-mm connecting rod BC. The mass of the connecting rod BC is 5 kg, and the mass of the link CD and foot is 2 kg. At the instant when θ = 0° and the foot is just above the trampoline, determine the force exerted by pin C on rod BC.
Fig. P16.127
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