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The torque of a force vecF=-3hati+hatj+5...

The torque of a force `vecF=-3hati+hatj+5hatk` acting at a point is `vectau`. If the position vector of the point vector of the point is `7hati+3hatj+hatk`, then `vectau` is :

A

`14hati-hatj+3hatk`

B

`7hati-8hatj+9hatk`

C

`2hati-3hatj+8hatk`

D

`14hati-38hatj+16hatk`.

Text Solution

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The correct Answer is:
B
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