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Homework Statement
Gravity pulls the sign with 490N. Determine the tension in the cables.
Shown as in this picture:
http://img380.imageshack.us/img380/9891/forcesinequilibriumpf0.jpg
Homework Equations
I am not sure.
The Attempt at a Solution
I do not fully understand what I am supposed to do to solve this problem, so I tried different methods that I thought of trying, to see if the answer look like it might fit. This is what I did.
For FT1:
45°+60° = 105° /45° = 2.3333
490/2.3333 = 210
210/sin 45° = 297N = FT1
For FT2:
45°+60° = 105° /60° = 1.75.
490/1.75 = 280
280/sin 60° = 323N = FT2
This is what I did, but I am not sure if this is done correctly to achieve the correct answer. Could someone check the answer and also show me the correct setup to do this kind of problem? The part I don't get is how to determine force using different angles.
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