Question

what is the moment of inertia of a solid sphere?
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Answer 1

Also a point mass m at the end of a rod of length r has this same moment of inertia and the value r

is called the radius of gyration.... when the cavity radius R1 =0,the object is a solid ball ( above )...

when R1 =R2,and the object is a hollow sphere..

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Answer 2

Answer:

Also, a point mass m at the end of a rod of length r has this same moment of inertia and the value r is called the radius of gyration. ... When the cavity radius r1 = 0, the object is a solid ball (above). When r1 = r2, , and the object is a hollow sphere.

Explanation:

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