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Coordinates of Centre of Mass of Composite Bodies and Figures

Suppose we have composite body which can be divided into finite elements of masses m1, m2 and m3  their centre of masses being G1, G2 and G3 respectively.

Solution

= 2 r2 sin α /L

= 2 r2 sin α / 2αr = r sin α / α

x = r sin α/ α for symmetry y =0