試題詳解

46. An empty can and a full can of the same shape are rolled side-by-side down an incline without slipping. If they start together at the same height, which of the following statements is correct?
(A) The empty can arrives at the bottom first.
(B) The full can arrives at the bottom first.
(C) They both will arrive at the bottom together because the gravity acceleration is the same.
(D) It depends on the materials of the cans.
(E) It depends on the incline angle.