問題詳情
16. 如下圖所示，若 A 物體與 B 物體之間為完全光滑，B 物體與地面之摩擦係數為 0.3，若欲拉動B 物體，則 P 力至少應為何？
(A) 80 N
(B) 60 N
(C) 50 N
(D) 40 N
參考答案
無參考答案
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