本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 通用国际物理
[单选题]
An Olympic athlete throwsf+8 sp:yz3 rsku+ w9ry a javelin u()0lp is/ 3vj l9gdmc8y cz1mat four different angles above the horizontal, each with the8ljc(0l3m)sz pcumv9 id / y1g same 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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