A uniform sphere made of modeling clay has radius R=0.34m and moment of inertia I=2.77 for rotation about a diameter. It is flattened to a disk with the same radius . What is the moment of inertia of the disk for rotation about an axis that is at the center of the disk and perpendicular to its flat surface?

Explanation:

Given,

Moment of inertia of sphere, I = 2.77

Radius of sphere, R = 0.34

Moment of inertia of sphere

Moment of inertia of disk

Mass of the disk remains same

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