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Question:

You’re using a 6-inch wrench to release the wheel nuts as you rotate your tires. If you’re applying 40 pounds of force, how much torque is on the wheel nut?

A 20 ft-lb
Explaination

20 ft-lb. Torque equals pounds of force times feet in length 40 pounds of force times 1/2 foot equals 20 foot-pounds of torque.