Question

two equal forces have the square of their resultant equal to three times their product. find the angle between them​

Answer 1

Answer:

60 deg

Explanation:

{mod (f1  + f2 ) }^2 = f^2 + f^2 +2*f*f*cosx =  2*f^2(1+ cosx)

now

3f^2 = 2*f^2(1+ cosx)

cosx = 1/2

x = 60