問題詳情
21.將三個物體 A、B、C 自同一地點、同時斜向拋出後，三者的軌跡如右圖所示，其中 A 與 B 的水平射程相同，B 與 C 的最大高度相同。則下列敘述何者正確? 
(A) A 與 B 的拋射角一定會互餘
(B) A 的飛行時間比 B 的飛行時間長
(C) A 與 B 初速的水平分量相同
(D) B 與 C的飛行時間相同
(E) B 與 C 初速的鉛直分量不相同。
(A) A 與 B 的拋射角一定會互餘
(B) A 的飛行時間比 B 的飛行時間長
(C) A 與 B 初速的水平分量相同
(D) B 與 C的飛行時間相同
(E) B 與 C 初速的鉛直分量不相同。
參考答案
答案：B,D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)
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