Find out the resultant of two forces of 4N and 7N acting at an angle of 140°

Answer 1

7 along x axis
4 at 40 degrees above y axis

Fx = 7 - 4 cos 40
Fy = 4 sin 40

|F| = sqrt (Fx^2 + Fy^2)

angle above x axis = tan^-1 (Fy/Fx)