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Moment of inertia

The moment of inertia (J) is often used instead of moment of gyration (mD2). The unit kg/m² is used for both:

Trägheitsmoment_Formel_1

Thus, for the moment of inertia (J) relating to a rotational axis going through the centre of the circle, which is perpendicular to the circle plane:

Trägheitsmoment_Formel_2


Moment of inertia