Rotational kinetic energy of cut cylinder

Oct 2008
66
13
Hey, had a basic rotational problem here that I wanted to double check if I'm thinking correctly about. We have a cylinder rotating about an axis through its center, with a rectangular section cut out of the middle. I'm attaching a pdf of the problem and my very simple description of my solution. If anyone has time to take a peek I'd be very grateful!
 

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ChipB

PHF Helper
Jun 2010
2,369
294
Morristown, NJ USA
Yes, your approach is correct.