Two forces of equal magnitude are acting on a particle. The angle between forces is 60°. The resultant force on the particle is
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f1 = f2 = f. (magnitudes are same)
R = √( f1² + f2² + 2f1.f2 cos∅)
R = √[ 2f² + 2f² √3/2 ]
R = √[ 2f² + √3f² ]
R = f .√[ 2 + √3 ] N
R = √( f1² + f2² + 2f1.f2 cos∅)
R = √[ 2f² + 2f² √3/2 ]
R = √[ 2f² + √3f² ]
R = f .√[ 2 + √3 ] N
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