In an equilateral triangle ABC , AL,BM and CN are medians . Forces along BC and BA represented by them will have a resultant represented by
A
2¯¯¯¯¯¯¯¯AL
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B
2¯¯¯¯¯¯¯¯¯¯BM
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C
2¯¯¯¯¯¯¯¯¯CN
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D
2¯¯¯¯¯¯¯¯AC
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Solution
The correct option is B2¯¯¯¯¯¯¯¯¯¯BM HereABCisanequilateraltriangleinwhichAL,BMandCNarethemedian,pose,forcerepresentedbyBC=FandforcerepresentedbyBA=F′thentheresultantoftheseforceisrepresentedbyRwhichisequalto2BM.