Example of moment of inertia constant K, greater than one?

AI Thread Summary
The moment of inertia constant, k, typically ranges from less than one to one, representing the average distance of mass from the axis of rotation. An example of k being greater than one could occur with a thin square pipe rotating around its long axis, measured from face to face. When all mass is concentrated at a distance r from the axis, k equals one, as seen in a bicycle wheel. The discussion raises questions about the characteristics of objects with k equal to one and the implications of k being greater than one. Understanding these values is crucial for analyzing rotational dynamics.
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Regarding the moment of inertia constant, k, as in I = kmr^2, k is often a fraction less than one, and sometimes is equal to one. http://en.wikipedia.org/wiki/List_of_moments_of_inertia

Is there an example of k being greater than one?
 
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The "k" is, in some sense, a measure of the average distance of the mass of an object from its axis of rotation. If all of the mass of the object is within radius r from the axis of rotation then the figure for k is guaranteed to be less than or equal to one.

The value of 1 is obtained when all of the mass is exactly at distance r from the axis of rotation. This would apply for something like a bicycle wheel where the mass is concentrated at the rim.

If you considered a thin square pipe rotating its long axis and if you measured its radius r from face to face (rather than from corner to corner) then I suppose that could give you a figure for k that is greater than one.
 
What does an object with k = 1 look like? What would it mean for k > 1?
 
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