Question: In order to raise the flagpole OC , a light frame OAB is attached to the pole and a tension of 7 8 0 lb

In order to raise the flagpole OC, a light
frame OAB is attached to the pole and a
tension of 780 lb is developed in the
hoisting cable by the power winch D.
Calculate the moment MO of this tension
about the hinge point O.

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