Задача id8931

A homogeneous beam weighing 600 N and 4 m long rests on a smooth patty and on protrusion B, located at a height of 3 m above the floor. The beam forms an angle of 30° with the vertical and is held by a rope AC stretched close to the floor. Calculate the tension in the rope, the reaction of the floor, and the reaction of protrusion B.

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