Question

2 forces equally magnitude have their resultant is equal to either of forces find the angle between them

Answer 1

Hey mate here is your answer


Let the the magnitude of two forces be F
then the magnitude of the resultant will also be F

Now F^2= F^2 +F^2 +2F^2 cos@

cos@= -F^2/2F^2 = -1/2

So @= 120°

i.e. the angle between the forces is 120°


Hope this helps you:)

Sorry I couldnt explain with a pic bcoz my camera was not working