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Find the torque of a force vecF=3hati+4h...

Find the torque of a force `vecF=3hati+4hatj+5hatk N` about a point `O`, whose position vector is `vecr = hati+hatj+hatk m`.

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`vectau_(o)=vecr+vecF=|[hati,hatj,hatk],[1,1,1],[3,4,5]|`
`=hati-2hatj+hatk Nm`
`|vectau_(0)|=tau_(0)=sqrt6 Nm`
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CP SINGH-ROTATIONAL MOTION-Exercise
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