PURPOSE: To demonstrate the center of mass.
DESCRIPTION: When the object is suspended from one of the holes along its perimeter, the center of mass will be directly below the suspension point, as defined by the plumb bob. When the object is suspended from the hole at its center of mass, it remains stable in any angular position.
REFERENCES: (PIRA 1J10.00) See also demonstration B1-09: CNTER OF MASS - TRIANGLE.
EQUIPMENT: Complex object on stand with plumb bob, as photographed.
SETUP TIME: None
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