Find the angle between two forces P,Q which has 30N and 27 respectively if the magnitude of the resultant force is 38N

Answer 1

You'd get help if you put your school SUBJECT in the right place.

Answer 2

recall the law of cosines, and you will see that θ can be found using

38^2 = 30^2 + 27^2 - 2(30)(27)cos(π-θ)