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October 25, 2014

Homework Help: Physics

Posted by James on Saturday, June 16, 2012 at 9:50pm.

5. A circular pizza of radius R has a circular piece of radius R/3 removed from one side. The center of mass of the pizza with the hole is at a distance of_____ from the center of mass of the original pizza.
A. R/20
B. R/2
C. R/30
D. R/3
E. R/12

The answer is E, but why is it E? Thank you in advance.

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