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Physics 211, Quiz 13A

Question 1: Joe uses a wrench of L = 50 cm to loosen a bolt. He pulls the end of the wrench with a force F = 120 N. How much torque does he exert on the bolt? 
  Answer: When force is exerted perpendicular to the line to the 
          axis, then

                torque  =  (force) * (radius)

                        =  (120 N) * (0.5 m)

                        =  60 Newton-meters

Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.