問題詳情
1. 如圖所示，物體A放置於斜面上，重量為80N，其與斜面之摩擦係數為0.25，若欲使物體A不會往下滑動，則力量F至少應為多少N？ 
(A)
(B)
(C)
(D)32。
(A)
(B)
(C)
(D)32。
參考答案
答案：D
難度：困難0.380952
統計：A(4),B(5),C(3),D(8),E(0)
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