Refer to the diagram for Problem. Assume that the transformer weighs 6000 lb. Determine θ...

Refer to the diagram for Problem. Assume that the transformer weighs 6000 lb. Determine θ and the magnitude of the force F so that the resultant of the lifting force (6000 lb) will act vertically upward.

Problem

The transformer (as shown) must be lifted vertically out of the pit. Angle θ = 18°. Determine the required magnitude of force F so that the resultant of the two forces will be vertical.