Question

Two forces, F1 and F2, are acting on a body, as shown in the figure. The resultant force, R, is

newtons.

Answer 1

R ,is the Resultant of two forces,

∠ACB +50°=180°

∠ACB=180° -50°

∠ACB=130°

→Cos(130°)=Cos (180°-50°)= -cos 50°= -0.6427

Magnitude of resultant force =70.70 Newtons(Approx)