問題詳情

14. A solid sphere, spherical shell, solid cylinder and a cylindrical shell all have the same mass m andradius R. If they are all released from rest at the same elevation and roll without slipping, whichreaches the bottom of an inclined plane first? (

)
(A) Solid sphere
(B) Spherical shell
(C) Solid cylinder
(D) Hoop
(E) All take the same time

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增