I'm having difficulty in making two methods of the calculation of center of mass come out equivalently. One method is via intuition and the other is via standard formula.(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

Find the center of mass of a semi-circular band of length L and mass M, and represent it in terms of [tex]\alpha R[/tex].

http://www.olypen.com/mdpsoul/physhelp/band-cm.png [Broken]

2. Relevant equations

http://olypen.com/mdpsoul/physhelp/book.png [Broken]

3. The attempt at a solution

http://olypen.com/mdpsoul/physhelp/intuit.png [Broken] http://olypen.com/mdpsoul/physhelp/forumla.png [Broken]

Can anyone track down the problem here?

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# Homework Help: Center of Mass of Semi-Circle

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