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A body is subjected to a constnat force ...

A body is subjected to a constnat force `vecF= (2hati+hatj+3hatk)N`. If work done by this force in taking a particle from `(1, 2, 3)` to `(3, 2, 1)` is `-2n` (in joule) then value of n is (coordinates are in metre) :

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The correct Answer is:
2
A body is …………
`vecS = 2hati+0hatj-2hatk`
`w = vecF.vecS=4-6= -2J`
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