A 120 N Traffic Light Is Located at the Midpoint

Multiple Choice

A 120 N traffic light is located at the midpoint of a cable between two poles. The cable makes an angle of 30° to the horizontal at each pole. What is the tension in the cable? Ignore the mass of the cable.

A) 60.0 N
B) 90.0 N
C) 140 N
D) 110 N
E) 120 N