|Nov17-08, 12:10 AM||#1|
Moment Of Inertia Of Sphere At A Distance
If a sphere is at a certain radius from the axis of rotation greater then the radius of the sphere can you just take the moment of inertia as a point mass, I=mr^2?
Thanks for your time.
|Nov17-08, 05:13 AM||#2|
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No. Use the parallel axis theorem to find the moment of inertia about the axis.
|Nov17-08, 04:21 PM||#3|
We have two radii to define: one for the shape of the sphere and the other for the (circular) movement it is in.
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