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## Homework Statement

For the equation torque = F*r*sin(theta), is theta obtained from either angle:

F makes with r (or perpendicular component of F makes with r, or the perpendicular component of r makes with F)?

- Thread starter kathyt.25
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- #1

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For the equation torque = F*r*sin(theta), is theta obtained from either angle:

F makes with r (or perpendicular component of F makes with r, or the perpendicular component of r makes with F)?

- #2

djeitnstine

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So find r then measure the angle created by F. So basically we're looking at the perpendicular component of F.

It would make no sense if it was the component of the moment arm r.

- #3

PhanthomJay

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