Physics Unit8: Rotational Motion (id: 462b01670)

[单选题]
A uniform solid sphere has mass M and ra-a x1+unnz:k gzvoh-f- 4dr( i,emx w(;;wrljdius R. If these) 8,g kcy/xgbu are increased to 2M and 3R, what happens to the sphere's mouxbkg/g 8 ,)ycment of inertia about a central axis?

A. increases by a factor of 6
B. increases by a factor of 12
C. increases by a factor of 18
D. increases by a factor of 54


参考答案:  C


本题详细解析: 暂无