Center of Mass of a Perforated Square Plate

hole shape

circular

n-gon

number of vertices

4

hole size

0.55

show locus

rotation angle

0

This Demonstration interactively computes and plots the centroid (center of mass) of a square plate perforated with a circular or regular polygonal hole.

When the hole is a regular polygon and rotated around its center, the centroid of the plate moves and the locus of the center of mass is displayed.