Here's the harder way (integrating the torque), but I get the same result as with the easier way (lining up the center of mass with the pivot point). One crucial assumption behind this derivation is that the end of the semicircle is the pivot point. Click on the derivation to make it larger.

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TopNewestThanks! In future, you can attach your solution to the report (and make edits) for it. – Calvin Lin Staff · 2 weeks, 4 days ago

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– Steven Chase · 2 weeks, 3 days ago

Cool, I didn't know I could attach images to reports and/or comments. I don't see the associated function boxes for comments and reports.Log in to reply

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