問題詳情

46. An empty can and a full can of the same shape are rolled side-by-side down anincline without slipping. If they start together at the same height, which of thefollowing 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 isthe same.
(D) It depends on the materials of the cans.
(E) It depends on the incline angle.

參考答案

答案：B
難度：計算中-1
書單：沒有書單，新增

用户評論

【面試倒楣鬼-22幸運上後西】評論

轉動慣量除以mR2  小的線性加速快 因此會比較快到底部(滿罐先到B)..............