Solution: 

The answer is 866 N, upward.

The vertical component can be found if a triangle is constructed with the 1000 N diagonal force as the hypotenuse. The vertical component is the length of the side opposite the hypotenuse. Thus,

sin (60 degrees) = (Fvert) / (1000 N)

Solving for Fvert will give the answer 866 N.

Problem 4. After its most recent delivery, the infamous stork announces the good news. If the sign has a mass of 10 kg, then what is the tensional force in each cable? Use trigonometric functions and a sketch to assist in the solution.