To tighten a bolt, you push with a force of 90 N at the end of a wrench handle that is 0.45 m from the axis of the bolt.

Question

(a) What torque are you exerting?
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1 N·m
(b) If you move your hand inward to be only 0.15 m from the bolt, what force do you have to exert to achieve the same torque?
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2 N
(c) Do your answers depend on the direction of your push relative to the direction of the wrench handle? (Why or why not?)
3