Two horizontal beams are used to balance the masses A, B, and C, as shown in the figure. Each beam has a length of 3 meters. Determine the mass A and B; together with the forces exerted by Cables D, E, F, G, and H, if mass c is 30 kg.

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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.