問題詳情
3.小狗用鼻子推得動筆記型電腦（簡稱筆電），主要原因是
(A)筆電比小狗輕
(B)筆電的動摩擦力小於狗鼻子的推力
(C)鼻子推力恰施於筆電的質心處理
(D)筆電的最大靜摩擦力小於狗的靜摩擦力
(E)筆電的正向力小於狗的正向力。
(A)筆電比小狗輕
(B)筆電的動摩擦力小於狗鼻子的推力
(C)鼻子推力恰施於筆電的質心處理
(D)筆電的最大靜摩擦力小於狗的靜摩擦力
(E)筆電的正向力小於狗的正向力。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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