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Question

two forces of equal magnitudes acting at a point at an angle thetta have the magnitudes of their resultant = one of the forces find the angle between the forces

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Solution

Dear Student,

$b o t h t h e v e c t o r a n d t h e r e s u l \tan t h a v e s a m e n a g n i t u d e l e t i t b e A . l e t t h e a n g l e b e t h e t a A^{2} = A^{2} + A^{2} + 2 A^{2} \cos θ \cos θ = \frac{- 1}{2} θ = 120 d e g r e e R e g a r d s$

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