問題詳情
20.如右圖所示，某遊樂園有一摩天輪，輪上 12 個車廂內皆坐有質量均為 m 的乘客 1 人，隨著摩天輪緩緩地作順時針方向的等速率圓周運動。當 1 號車廂恰抵達地面服務人員P 處時，7 號車廂恰達最高點，4 號和 10 號車廂分別到達左右兩端點，則下列敘述正確的是： 
(A)第 7 和 10 號車廂內乘客所受的正向力 N 的大小關係為 N7＞N4=N10＞N1
(B)第 7 和 10 號車廂內乘客所受的合力大小皆相等
(C)第 7 和 10 號車廂內乘客所受的加速度量值皆相等
(D)第 7 和 10 號車廂內乘客所受的向心力量值皆相等
(E)第 7 和 10 號車廂內乘客所受的正向力大小皆相等。
(A)第 7 和 10 號車廂內乘客所受的正向力 N 的大小關係為 N7＞N4=N10＞N1
(B)第 7 和 10 號車廂內乘客所受的合力大小皆相等
(C)第 7 和 10 號車廂內乘客所受的加速度量值皆相等
(D)第 7 和 10 號車廂內乘客所受的向心力量值皆相等
(E)第 7 和 10 號車廂內乘客所受的正向力大小皆相等。
參考答案
答案：B,C,D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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