阿摩線上測驗
6. Which is correct for a downhill race among a loop, a cylinder, and a solid sphere (all with the same mass M and radius R) by rolling (with no slip)?
(A) The loop is the loser；
(B) The solid sphere is in the 2nd place；
(C) The cylinder is the winner；
(D) All；
(E) None.
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統計： A(0), B(1), C(1), D(0), E(0) #3188037
統計： A(0), B(1), C(1), D(0), E(0) #3188037
