Compute the combined moment of the two 85-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 7.5 in., b = 3.5 in., F = 85 lb. F Answers: (a) Mo= i A y ! Ib-in. x

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.