問題詳情

3.A thin circular metal disk is rotated about its center of mass as shown in Fig,2. Find the moment of inertia about this axis if the disk has four circular holes of radius a cut out of its body, 25%

參考答案

答案:D
難度:適中0.545455
統計:A(2),B(1),C(7),D(12),E(0)

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