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ABC is an equilateral triangle with O as...

ABC is an equilateral triangle with O as its centre `vec(F_(1)),vec(F_(2)) " and " vec(F_(3))` represent three forces acting along the sides AB, BC and AC respectively. If the torque about O is zero then the magnitude of `vec(F_(3))` is

A

`(F_(1)+F_(2))/(2)`

B

`2(F_(1)+F_(2))`

C

`F_(1)+F_(2)`

D

`F_(1)-F_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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