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
Famous quotes containing the words mass, moment and/or inertia:
“Genius is present in every age, but the men carrying it within them remain benumbed unless extraordinary events occur to heat up and melt the mass so that it flows forth.”
—Denis Diderot (1713–1784)
“Composition is, for the most part, an effort of slow diligence and steady perseverance, to which the mind is dragged by necessity or resolution, and from which the attention is every moment starting to more delightful amusements.”
—Samuel Johnson (1709–1784)
“What is wrong with priests and popes is that instead of being apostles and saints, they are nothing but empirics who say “I know” instead of “I am learning,” and pray for credulity and inertia as wise men pray for scepticism and activity.”
—George Bernard Shaw (1856–1950)