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Two vectors having magnitude 10 and 12 newtons have 60° angle between each other .find resultant vector. Ans fastttttt....... :-)
Resultant force=√100+144+2.1/2.10.12 = √364=2√91 N
Formula for resultant force vectors is F = squareroot of (a^2+b^2+2ab Cos thetha) =root of100+144+2×10×12×1/2 =2 root 91
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