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In an equilateral triangle ABC, AL, BM and CN are medians. Forces along BC and BArepresented by them will have a resultant represented by(C) 2 CN(A) 2 AL(B) 2 BM(D) AC |
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Answer» Answer: (B) 2 BM is the CORRECT answer. Given data: equilateral TRIANGLE ABC, AL, BM and CN are medians. FORCES along BC and BA represented by them. To find force which willl have a resultant represented by =? Consider equilateral triangle ABC AL, BM and CN are medians. Forces along BC and BA represented by say F and F' respectively. From figure we get to know that, BA+BC=BD BA+BC = 2BM Thus, the resultant of the forces will be given by 2BM. |
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