Question

Two forces F1 and F2 of magnitude 5N each inclined to each other at 60 degree,act on the body . Find the resultant force acting on the body .

Answer 1

we know resultant is given by
R = √F1² + F2² + 2F1F2cos∅
∅ = 60°
So
R = √25 + 25 + 50/2
R = √ 75. N

Answer 2

I think I m correct if not plz correct me