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Three forces vecA =hati+hatj-hatk, vecB=2hati-hatj+3hatk and vecCare acting on a body to keep it in equilibrium. Then vecC is |
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Answer» `-(3hati+4hatk)` `vecA +vecB+VECC=vecO` `vecC=-(vecA+vecB)=-[hati+hatj+hatk+2hati-hatj+3hatk]` `=-[3hati+0hatj+4hatk)=-(3hati+4hatk)` |
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