4 A sphere of uniform density has a polar moment of inertia about its center of mass of (2/5)mr2 where m is the sphere's mass and r is the sphere's radius.  What is  sphere's polar moment of inertia about an axis offset 3r from the sphere's center? (2/5)mr2 (2/5)mr2 + mr2 (2/5)mr2 + 3mr2 (2/5)mr2 + 9mr2

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A sphere of uniform density has a polar moment of inertia about its center of mass of (2/5)mr2 where m is the sphere's mass and r is the sphere's radius.  What is  sphere's polar moment of inertia about an axis offset 3r from the sphere's center?

(2/5)mr2

(2/5)mr2 + mr2

(2/5)mr2 + 3mr2

(2/5)mr2 + 9mr2

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