Physics
posted by Tina .
A loudspeaker of mass 25.0 kg is suspended a distance of 1.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of 2.50 m . What is the tension in each of the cables?

The angles matter.
SinTheta=1/2 mg /Tension
solve for tension: tension= mg/2sintheta 
oh, tantheta=1/2.50, so you can get theta from that.

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