The mechanical system shown in figure is driven by the applied force fa(t). When x1 = x2 = x3 = 0, the springs are neither stretched nor compressed. a. Draw the free body diagram(s) and write the differential equations.

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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.