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Two constant forces vec(F)(1) and vec(F)...

Two constant forces `vec(F)_(1)` and `vec(F)_(2)` acts on a body of mass 8 kg. These forces displaces the body from point `P(1, -2,3)` to `Q(2,3,7)` in 2s starting from rest. Force `vec(F)_(1)` is of magnitude 9 N and is acting along vector `(2hat(i)-2hat(j)+hat(k))` . Work done by the force `vec(F)_(2)` is :-

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