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Moment of Inertia of pulley
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[QUOTE="SammyS, post: 5458178, member: 295898"] Hello Daisy Muller. Welcome to PF ! A general comment. You included many equations, which is fine, but you tended to ignore them. For (a): Galileo feels as though he has been misquoted. Look at your 1st equation. It's true that if the tension in the string (Is that T?) is zero, then doubling the mass will have no effect. You can give Galileo credit there. But T is not zero. I have a question concerning your 2nd equation. The (½)MR[SUP]2[/SUP] is the moment of inertia for a uniform disk. That does not seem correct here. In fact, if the mass of the two rotating masses is much greater the the rotating rod, then the moment of inertia of the rotating system is more nearly MR[SUB]2[/SUB] . [/QUOTE]
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Moment of Inertia of pulley
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