Seven homogeneous bricks, each of length L, are arranged as shown in figure (9-E2). Each brick is displaced with respect to the one in contact by L/10. Find the x-coordinate of the center of mass relative to the origin shown.


Let the mass of each brick be ‘m’. Centre of mass of each brick will be at its length L/2.

Considering the origin at O, the x coordinate of center of mass of the system would be





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