Physics, check my answer pls
posted by Nev .
4. All of the following are true about torque except:
A. its units are Newtonmeters.
B. it can only be produced by a force.
C. torque is zero unless the force is pointed perpendicular to the moment arm.
D. a force whose line of action passes through the axis of rotation produces zero torque.
E. torque may point clockwise or counterclockwise, depending on the direction the force points.
My answer is: B

Physics, check my answer pls 
Elena
Ans: C
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