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Physics: Two pulley tension problem

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Please help me with attached problem.

Thanks in advance

1. Force Table is set up with 2 pulleys at 50 degrees and at 170 degrees as shown.

A total of 200 grams is suspended from the pulley at 50 degrees and a total of 300 grams is suspended from the pulley at 170 degrees. A third string, tied to the big ring, is attached to a force probe, and the probe is pulled so that the big ring is in the equilibrium with center of the force table.

Find: the magnitude of the tension force that the two shown strings exert on the ring.

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The physics needed for this solution is the fact that when the ring is in ...

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