問題詳情
31.如圖所示，B 、C 、D 、E 四齒輪組成一周轉輪系， B為100齒， C為50齒， D為80齒， E為20齒， 輪軸固定，若 B依順時針方向迴轉6次， D依反時針方向迴轉9次，求E 之迴轉次數及方向
(A)41rpm，順時針方向
(B)41rpm，逆時針方向
(C)31rpm，順時針方向
(D)51rpm，逆時針方向。
參考答案
無參考答案
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