Can you find the moment of inertia of a disk rotating on its side (like the hoop

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Question:

Can you find the moment of inertia of a disk rotating on its side (like the hoop above)? Unlike the hoop, O is not a good choice for variable of integration. Rather, break the disk up into a stack of rods spinning about their centers. (Or break it into a set of nested hoops.) It all begins with a good diagram. Extra: Can you figure out how to use the technique of disks or shells to show that the moment of inertia of a solid