Question

Two equal forces have their resultant equal to either At what angle are they inclined

Answer 1

F = (F^2 + F^2 +2F.F.cost)^1/2   (equal forces)
I = (1 + 1 + 2cost)^1/2                        
1=2 + 2cosα
-1 = 2cosα
cosα = -1/2
α = 120 degree

Answer 2

Answer:

120 degree

Explanation

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