51.tCalcualte the moment of inertia of a hollow cylinder when the rotational axis is through the center.
The inner radius is R1 and outer radius is R2?The total mass of the hollow cylinder is M.
(A)





答案:D
統計:A:0,B:0,C:0,D:1,E:0
難度:計算中
【面試倒楣鬼-22幸運上後西】評論
出題敘述可以這麼不嚴謹的嗎? 沒有說密度均勻= =