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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

`14hat i-38hat j+16hat k`

B

`4hat i+4hat j+6hat k`

C

`-14hat i+38hat j-16hat k`

D

`-21hat i+3hat j+5hat k`

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