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O is the centre of an equilateral triangle ABC.F, F2, F, are the threeforces acting along the sides AB, BC, AC as shown in fig. What shouldbe the magnitude of F, so that total torque about O is zero?(A)2(F, F2)(C) F1 + F2F2(B) F1 F2(D)72F1hout linnior with the same linear velocity v. If

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