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Moment of Inertia Explained

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Uploaded by on Dec 14, 2010

Explanation of the moment of inertia and rotational motion
By James Dann, Ph.D., People's Physics Book, for ck12.org CC-BY-NC-SA

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Education

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Uploader Comments (jamdann21)

  • I assume you're referring to the last part with the book. It's complicated. You have to do a stability analysis under small perturbations from the rotational axes. It is worked out in most classical mechanics textbooks. An understanding of differential equations will help a lot. In short, when you add a small perturbation to the rotation the middle axis (one with the middle value for moment of inertia) ends up with a negative under the square root when calculating its precession.

Top Comments

  • Thanks heaps. I'm studying dynamics at uni, and that just made it all clear!

  • very good! thank Q

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All Comments (21)

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  • Need more vids! Very good!

  • Disappointed when I didn't find the answer in the comments.

  • Very well explained without all the hard maths ! Thanks

  • I still don't understand it to 100%, but you sure made it more clear.

  • I'm taking engineering statics, and this really helped :D

    Thank you.

  • Thanks for explaining it so well!

  • ACTION!!!!!!!!!!!!!!!!!

    

  • Awesome!! Thank You Very Much

  • greaat

    

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