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The door shown provides outdoors access to the basement of a building. The door has hinges at points B, C, and D, and it weighs 85 lb with center of gravity at point G. The force F acts perpendicular to the door.
A (36, 15,3) in.B (62, 3, 31) in.C (36, 15,31) in.D (10,27, 31) in. G (36, 15, 17) in.
Determine the value of F if the resultant moment of F and the 85 lb weight about line BCD is to be -64 in.lb.
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