First moment of area

ID: first-moment-of-area

The first moment of area is a geometric property that measures the distribution of an area about a particular axis. It is often used in engineering and structural analysis to help determine the centroid of a shape or area. The first moment of area (denoted as \( Q \)) is defined for a specific axis and is calculated as the integral (or sum) of the area times the distance from that axis.

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