6. What is the moment of inertia I for a uniform ring of radius R and mass M about an axis (perpendicular to the plane of ring) at its rim?
(A)0.5 MR2
(B) MR2,
(C) 1.5 MR2
(D) 2 MR2
(E) None.

答案:登入後查看
統計: A(1), B(6), C(0), D(1), E(0) #2735469

詳解 (共 1 筆)

#7421100
所以圓環中心的轉動慣量要記
是MR^2
題目說是繞邊緣,所以要代平行軸定理
6a3e279b9c3b4.jpg
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