Task 11122.

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Determine the weight of the beam Av if the tension forces of the ropes are known F1 = 120 N and F2 = 80N. The angles a = 45 ° and b = 30 ° are specified between the vertical and the ropes of the AC and BC, respectively.

A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the formula and the answer.
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