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Homework Statement
The figure shows a light fixture suspended from the ceiling. If the tension in cable 1 is 34N and the tension in cable 2 is 24N, what is the mass of the light fixture?
Homework Equations
Image
http://orbitsimulator.com/misc/IMG00034-20101024-1557.jpg
The Attempt at a Solution
I know to add the y-components of the tension of each cable, and to use m=F/a to get the mass. But how do I get the y-component of the triangle on the right if I don't know the angle? The place where cable 2 attaches to the horizontal bar can be slid back and forth, changing the angles of the triangle therefore changing the y-component of the 24N force.