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A force vecF = (2 hati + 3hatj) N act on...

A force `vecF = (2 hati + 3hatj) N` act on a particle whose position vector w.r.to origin `O` is `vecr = (5 hati - 2hatj) m`. Find the magnitude and direction of torque.

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`vec(tau) = vecr xx vecF = (5 hati - 2 hatj) xx (2 hati + 3 hatj)`
`= 15 hatk + 4hatk = 19 hatk m`
Torque is 19 Nm along positive z-axis.
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