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

Find the torque of a force `vecF= -3hati+hatj+5hatk ` acting at the point `vecr=7hati+3hatj+hatk`

A

`14hati+-38hatj+16hatk`

B

`4hati+4hatj+6hatk`

C

`2lhati+4hatj+4hatk`

D

`14hati+34hatj=16hatk`

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