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A force vecF = 3hati+chatj+2hatkacting o...

A force `vecF = 3hati+chatj+2hatk`acting on a particle causes a displacement `vecs =- 4hati+2hatj+3hatk` in its own direction. If the work done is 6 J, the value of c is

A

zero

B

1

C

12

D

6

Text Solution

Verified by Experts

The correct Answer is:
d
Work done =force xxdisplacement
`Fxx s`
`6=(3hati+chatj+2hatk)(-4hati+2hatj+3hatk)`
`6=-12+2c+6`
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