A force F=(2hati-hatj+4hatk)N displaces ...

A force `F=(2hati-hatj+4hatk)N` displaces a particle upto `d=(3hati+2hatj+hat k)m.` Work done by the force is

zero

8 J

4 J

12 J

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Verified by Experts

The correct Answer is:

(a) Work done W=F.d
`=(2hati-hatj+4hatk)(3hati+2hatj-hatk)`
W=6-2-4
W=0

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