1.

The torque of a force vec F = -3hati + hatj + 5hatk acting at a point is hat (tau) . If the position vector of the point vector of the point is 7 hati+3 hatj+hatk , then vec (tau) is :

Answer»

`14 HATI-hatj+3 HATK`
`7 hati-8 hatj+9 hatk`
`2 hati - 3 hatj+8 hatk`
`14hat i-38 hatj+16 hatk`

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