Engineering, 11.10.2019 23:30, croxy0514

The 75lb uniform cellar door is held in place by the hinges at a and b and the tension in rope cd. hinge b does not support any axial thrust. find the reaction a1. point d is in the xy plane.

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The 75lb uniform cellar door is held in place by the hinges at a and b and the tension in rope cd. h...