問題詳情

14. When the position of an oscillating particle is x = Acoswt ,, its velocity v is
(A)A cos wt
(B)-A cos wt
(C)-Aw sin wt
(D)Aw sin wt

參考答案

答案：C
難度：非常困難0.0869565
統計：A(6),B(8),C(2),D(2),E(0)

用户評論

【林庭安】評論

那個正方形符號是啥@@"??

【【站僕】摩檸Morning】評論

原本題目:14. When the position of an oscillating particle is, its velocity v is(A)A cos t(B)-A cos t(C)-A sin t(D)A sin t修改成為14. When the position of an oscillating particle is x = Acoswt ,, its velocity v is(A)A cos wt(B)-A cos wt(C)-Aw sin wt(D)Aw sin wt