Engineering, 04.04.2020 05:31, ashleyuchiha123

4.116 The lid of a roof scuttle weighs 75 lb. It is hinged at corners A and B and maintained in the desired position by a rod CD pivoted at C. A pin at end D of the rod fits into one of several holes drilled in the edge of the lid. For α 5 50°, determine (a) the magnitude of the force exerted by rod CD, (b) the reactions at the hinges. Assume that the hinge at B does not exert any axial thrust.

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4.116 The lid of a roof scuttle weighs 75 lb. It is hinged at corners A and B and maintained in the...