Question

The boy is shown pushing a bullet into the grave, exerting an F force on it. Determine the forces F and the tensile force exerted by the rope on the ball, when it is known that G = 200 N. The appropriate angles are shown 40 ° and 50 °. It is known that: cos40 ° = 0.77 and cos50 ° = 0.64

Answer 1

The force of tension exerted by the rope on the ball is equal to G, or 200 N.

The other forces are

$$F_1\text{cos}40-F_2\text{cos}50=0,\\ F_1\text{sin}40+F_2\text{sin}50-G=0.$$

The solution of this system is

$$F_1=129\text{ N},\\ F_2=153\text{ N}.$$