The bolts on a car wheel require tightening to a torque of 90 N œm. If a 30 cm long wrench is used, what is the magnitude of the force required when the force is perpendicular to the wrench?

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The law of conservation of angular momentum:  The total angular momentum of a rotating object remains constant if the net torque acting on it is zero.


The bolts on a car wheel require tightening to a torque of 90 N œm. If a 30 cm long wrench is used, what is the magnitude of the force required when the force is perpendicular to the wrench?