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ABC is an equilateral with O as its cent...

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

A

`F_(1) + F_(2)`

B

`F_(1)- F_(2)`

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
A
For rotational equilibrium – `F_(1) x + F_(2) x = F_(3) x rArr F_(3) = F_(1) + F_(2)`
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