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engineering mechanics planar kinetics of a rigid body work and energy
1. The uniform slender rod has a mass of 5 kg. Determine the magnitude of the reaction at the pin O when the cord at A is cut and = 90°
(A): O = 122.6 N
(B): O = 42.0 N
(C): O = 67.4 N
(D): O = 91.1 N
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