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How do I calculate the Moment of Inertia of a "Disco mirror ball" weighing 50 N and with a radius of 25 cm?
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I do not know how to insert mathematical formulas in Yahoo! Answers, but i can give you this link to the corresponding Wikipedia page, in which Moment of Inertia is defined and clarified. Also there you will find various formulas for calculating Inertia, based on what you know and do not know about the object in question.
The link is : http://en.wikipedia.org/wiki/Moment_of_inertia#Definition
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