Two forces `f_(1)=3hati-2hatj+hatk and f_(2)=hati+3hatj-5hatk` acting on a particle at

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Two forces `f_(1)=3hati-2hatj+hatk and f_(2)=hati+3hatj-5hatk` acting on a particle at A move it to B. find the work done if the position vector of A and B are `-2hati+5hatk and 3hati-7hatj+2hatk`.
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