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The moment of the froce, vecF=4hati+5hatj-6hatk at (2,0,-3), about the point (2,-2,-2) is given by |
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Answer» `-7hati-4hatj-8hatk` `VECR=(2,0,-3)-(2,-2,-2)=(0,2,-1)` `THEREFORE vectau=vecrxxvecF` `=(0,2,-1)xx(4,5,-6)` `=|(hati,hatj,hatk),(0,2,-1),(4,5,-6)|` `=hati(-12+5)-hatj(4)-hatk(-8)` `=-7hati-4hatj-8hatk` |
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