Center of gravity

The center of gravity of a body, volume, area, or line is that point at
which if the body, volume, area, or line were suspended it would be perfectly balanced in
all positions. For symmetrical bodies of uniform material it is at the geometric center. The
center of gravity of a uniform round rod, for example, is at the center of its diameter halfway
along its length; the center of gravity of a sphere is at the center of the sphere. For solids,
areas, and arcs that are not symmetrical, the determination of the center of gravity may
be made experimentally or may be calculated by the use of formulas.

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