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In each of the problems given below, fin...

In each of the problems given below, find the work done by a force `vecF` acting on a particle, such that the particle is displaced from a point A to a point B. `vecF` = `3hati-hatj-2hatk`
A(-3,-4,1), B(-1,-1,-2).

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Displacement `vecS = 2hati+3hatj-3hatk`
work done `vecF.vecS`
=`(3hati-hatj-2hatk).(2hati+3hatj-3hatk)`
= 6-3+6 = 9 units
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