問題詳情
3.彈簧振子 A 的質量為 公斤，彈簧的彈力常數為 N/m，在振子上面放置一個質量為 公斤的木塊 B，如圖，使木塊與振子一起在光滑水平面上作簡諧運動，振子與木塊間的靜摩擦係數為 0.5，為了使振子與木塊間不發生滑動，則振幅的最大值為：
(A)cm
(B)cm
(C)cm
(D)cm
(E)cm。
(A)cm
(B)cm
(C)cm
(D)cm
(E)cm。
參考答案
答案：E
難度：非常困難0
統計：A(0),B(0),C(1),D(0),E(0)
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