Question

Two vectors, each of magnitude A have a resultant
of same magnitude A. The angle between the two
vectors is
(1) 30° (2) 60° (3) 120° (4) 150°​

Answer 1

Answer:

60 is the answer of the question

Answer 2

Answer:

angle=120

Explanation:

a*2=a*2+a*2+2a*2cos theta

a*2-2a*2=2a*2cos theta

-1= 2cos theta

-1/2=cos theta

theta= 120 degree