is an equilateral triangle with 
as its centre. 
and 
represent three forces acting along the sides AB , 
and 
respectively. If the total torque about 
is zero then the magnitude of 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: Let 
be the distance of centre 
of equilateral triangle from each side.
Total torque about 
or 
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