Mass Moment of Inertia
The parallel axis theorem for mass moment of inertia about the new axis z is given by:
where:
- is the moment of inertia of the object about an axis passing through its centre of mass;
- is the object's mass;
- is the perpendicular distance between the axis of rotation and the axis that would pass through the centre of mass.
This rule can be applied with the stretch rule and perpendicular axis theorem to find moments of inertia for a variety of shapes.
Read more about this topic: Parallel Axes Rule
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