Im trying to find the moment of inertia for a 2/3 empty cylinder, could anyone see if I solved this correctly?
Someone told me it's wrong, but I dont know why exactly, so any thoughts would be much appreciated.
(I added the question and the attempt to solve it in a picture)
The answer I got is 13/18 * M * r0^2.
Does it make sense that its more than the moment of inertia of a full cylinder? (1/2 * M r0^2)
The Attempt at a Solution
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