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Do we need to memorize Moment of Inertia equations?

maplepawner

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maplepawner Newbie

maplepawner

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Hi, 

 

For the Physics C Mech test, do we need to memorize Moment of Inertia equations for the various objects (rod, sphere, etc?)

 

 

Will the problems you demonstrated in your videos appear on the multiple choice portion? They seem to be pretty complicated for the MC questions.

 

Thanks!

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FizziksGuy Enthusiast

FizziksGuy

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It's probably a good idea to know a few of the basic moments of inertia -- solid sphere, hollow sphere, rod about end, rod about middle.  You are expected to know how to derive moments of inertia, but "typically" in a more detailed problem they'll give you the moment of inertia -- but not always.

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