Mass moment of inertia 'I' is given by(adsbygoogle = window.adsbygoogle || []).push({});

[tex]I = \int r^2 dm[/tex]

r is the distance from the axis and dm is delta mass.

What is dm? How do I figure that out?

For a cylinder, the moment of inertia around the axis that goes from flat end to flat end is [itex]\frac{1}{2}mr^2[/itex].

The r^2 part is self explanatory but where does (1/2)m come from?

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# What is dm? (moment of inertia)

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