Finding force using vector

Quote:

Originally Posted by BabyMilo

As below.

1. There isn't enough information to determine the force which is exerted by cable s or t. You only can state that both cables together apply a force on the boom.

2. Draw a sketch such that the cables s and t are located in one plane.

3. Draw the parallelogram of forces.

4. Use siilar triangles to determin $\vec F_{string}$ and $\vec F_{boom}$