A B C is an equilateral triangle with O as its centre. \overrightarrow{F}_1, \overrightarrow{F}_2 and \overrightarrow{F}_3 represent three forces acting along the sides A B, B C and A C respectively. If the total torque about O is zero the magnitude of \overrightarrow{F}_3 is :

AIPMT 2012 Physics and Chemistry Paper

Question : 42 of 100

Marks: +1, -0

ABC is an equilateral triangle with O as its centre.

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2 and

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3 represent three forces acting along the sides AB,BC and AC respectively. If the total torque about O is zero the magnitude of

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3 is :

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