Prove that the centroidal polar moment of inertia of a given area A cannot be smaller than

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Prove that the centroidal polar moment of inertia of a given area A cannot be smaller than A2/2π.
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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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