A wrench with a length of #12 cm# is being used to unscrew a #3 cm# bolt. If a torque of #5 Nm# is needed to overcome the friction keeping the bolt in place, what is the minimum torque that must be applied to the wrench to unscrew the bolt?
Mar 13, 2018
Torque is always to the center of the rotated object.
Assuming you mean bolt diameter is 3cm, so radius is1.5cm
The torque which holds it is 5Nm which is 500N-cm
That equals :