A sign of weight 120 N hangs at rest from two identical cables. The cables are symmetrically arranged, each at 30∘ 30^\circ\,30∘ above the horizontal. Use a scale drawing of the three forces. What is the tension in each cable?
120 N120\ \mathrm{N}120 N
60 N60\ \mathrm{N}60 N
69 N69\ \mathrm{N}69 N
240 N240\ \mathrm{N}240 N