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O is the centre of an equilateral triang...

`O` is the centre of an equilateral triangle `ABC`. `F_(1), F_(2)` and `F_(3)` are the three forces acting along the sides `AB, BC` and `AC` respectively. What should be the value of `F_(3)` so that the total torque about `O` is zero?

A

`(F_1 + F_2)/2`

B

`2(F_2 +F_2)`

C

`F_1 +F_2`

D

`F_1 -F_2`

Text Solution

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The correct Answer is:
C
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