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The resultant of two vectors p and q is r if q is doubled

Answer» TION:let the resultant be rand NEW resultant be Rtherefore r=√p²+q²+2pqcos∅now q BECOMES 2qtherefore magnitude resultant RR=√p²+4q²+4pqcos∅and direction of new resultantθ=tan-¹(2qsin∅/p+2qcos∅)


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