A wrench is acting on a nut. The length of the wrench lies directly to the east of the nut. A force 150 N acts on the wrench at a position 15.0 cm from the center of the nut in a direction 30.0° north of east. What is the torque about the center of the nut?
A)22.5 N∙m
B)11.3 N∙m
C)19.5 N∙m
D)2250 N∙m
E)1949 N∙m

Question

Quizplus · Accepted Answer

Torque is calculated as the product of the force, the distance from the pivot, and the sine of the angle between the force and the lever arm. Here, torque = 150 N * 0.15 m * sin(30°) = 11.25 N∙m, which rounds to 11.3 N∙m.

A Wrench Is Acting on a Nut