Moment of Inertia of a Punctured Disk
A uniform circular disk of mass M and radius R has a moment of inertia I_c about its center. After a small mass is removed from a point at a distance R/2 from the center, the disk is rotated about a new axis passing through that point. What fraction of the original mass M must be removed for the new moment of inertia to equal I_c?
A
1/8
B
1/2
C
1/4
D
1/3
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