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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`= `4hati-3hatk`
A(1,2,0), B(0,2,3).

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Displacement `vecS = -hati+3hatk`
Work done = `vecF.vecS = (4hati-3hatk).(-hati+3hatk)`
= -4-9 = -13 units.
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