問題詳情

2.A、B、C三物體質量分別為 3kg、2kg 和 1kg,靜止並排置於一水平桌上,以一水平力F=15 N施於物體A,如右圖所示。若靜摩擦係數μs=0.15、動摩擦係數μk=0.1時,物體A對物體B的作用力為【 2 】N。

參考答案

答案:A
難度:簡單0.819277
統計:A(68),B(1),C(6),D(3),E(0)

用户評論

上榜黃】評論

08. With stock and bond markets in the doldrums, their trading operations have been badly hit. (A) sluggish (B) redundant (C) outrageous (D) prevalent

【站僕】摩檸Morning】評論

原本題目:With stock and bond markets in the doldrums, their trading operations have beenbadly hit.(A) sluggish (B) redundant (C) outrageous (D) prevalent修改成為With stock and bond markets in the doldrums, their trading operations have beenbadly hit.(A) sluggish (B) redundant (C) outrageous (D) prevalent