Question

square of the resultant of two forces of equal magnitude is equal to 3 times the product of their magnitude the angle between them is

Answer 1

Let the two forces of equal magnitude be 'x'

A/Q

R²=3(x.x)

=>R²=3x²

=>x²+x²+2x²CosФ=3x²

=>2x²CosФ=x²

=>CosФ=1/2=Cos60

=>Ф=60°