Question

Three forces, F1, F2, and F3, all act on an object, as shown in the figure. The magnitudes of the forces are: F1 = 78.67 N, F2 = 53.27 N, and F3 = 20.30 N. The magnitude of the resultant force acting on the object is given by

Answer 1

Since no picture is attached, assume that all forces are parallel, and forces F1 and F2 act in +x direction, while F3 acts in the opposite (-x) direction. In this case, the resultant is given by

$$R=F_1+F_2-F_3=111.64\text{ N}.$$