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ABC is an equilateral triangle with O as its centre F1, F2 and F3 represent three forces acting on the sides AB, BC and AC respectively.

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ABC is an equilateral triangle with O as its centre F1, F2 and F3 represent three forces acting on the sides AB, BC and AC respectively. If the total torque about O zero then the magnitude of F3 is

(A) F1 +F2

(B) F1 - F2

(C) F1 +F2/2

(D) 2(F1 +F2)

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1 Answer

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Correct option(A) F1 +F2

Explanation:

If we take clockwise torque

If we take clockwise torque

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