A Belt Tension - Maintenance

A force of 60 Newtons is applied to the end of a wrench 12 centimeters long. How much torque is produced? 30 Newton•meters of torque is required to close a door 1.5 meters wide. What force is needed to cause this torque? A 90.0 gram mass is 75 centimeters from the pivot point on a balance scale. ................
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