問題詳情
49.將一顆網球由高樓樓頂靜止自由落下，若網球在空中運動時受到空氣阻力的大小與速率成正比，且球落地前已達終端速度，則網球在落下過程中加速度大小 與時間 t 的關係圖，最接近下列哪一個？
(A)
(B)
(C)
(D)
(A)
(B)
(C)
(D)
參考答案
答案：B
難度：適中0.446809
統計：A(15),B(21),C(8),D(3),E(0)
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