Posted by **Raquel** on Thursday, September 13, 2007 at 11:10pm.

A wrench .9m long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of (0,1,3) at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 J of torque to the bolt.

This is the formula i have:

T=|r x F| Can anybody point me in the right direction?

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