本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 国际高中通用物理
[单选题]
An Olympic athlete throws a javelin at four different anglejt;6k2xto e0/9bc :ycs3c atds above the horizgm5ng,+t2 c- wj zcmdr d4m .b1;cr-bzk8e+e contal, each with the c.k-4b 2ce -crjm,e+t b15dwgr mz ncm;+d8z gsame speed: $30^{\circ}$, $40^{\circ}$, $60^{\circ}$, and $80^{\circ}$. Which two throws cause the traveling to land the same distance away?
A. $30^{\circ}$ and $80^{\circ}$
B. $40^{\circ}$ and $60^{\circ}$
C. $40^{\circ}$ and $80^{\circ}$
D. $30^{\circ}$ and $60^{\circ}$
参考答案: D
本题详细解析:
暂无
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