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A force vecF=hat i+5 hat j+7 hat k acts ...

A force `vecF=hat i+5 hat j+7 hat k` acts on a particle and displaces it throught `vec s=6 hat I +9 hat k`. Calculate the work done if the force is in newton and displacement in metre.
(ii) Find the work done by force `vec F=2hat i-3 hat j+hatk` when its point of application moves from the point A(1,2,-3) to the point B (2,0, -5).

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