CENTER OF GRAVITY AND CENTROID

The center of gravity or centroid are required parameters in order to determine the moment of inertia of a body. Although these two are often used interchangeably, these terms do differ.

Center of mass is the summation of mass divided by the total body mass in formulation. It is differentiated with the center of gravity with only the introduction of the gravitational acceleration g. Center of mass and center of gravity are used for regular shapes.

Centroid, on the other hand, has the same principle but only used for composite bodies, that is, bodies of different combined shapes. Centroids has similar basic procedure though parameters differ between centroid of a line, centroid of an area, and centroid of a volume.

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