本题目来源于试卷: Physics Bowl by Topic 4: Kinematics - part III Projectile Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
03.05: Two arrows are la.f85ta60;upsfjxu36osg e lc unched at the samu)9 n1r,9as 4lnw1xy:jxde- jz1wxesv-f wn7e time with the same speed. A at an angle greater than 45 degrees, and arrow B at an angle less :w,d9snj exw7v91 lsy exj w nf--xua r1)4zn1than 45 degrees. Both land at the same spot on the ground. Which arrow arrives first?
A. arrow A arrives first.
B. arrow B arrives first.
C. they both arrive together.
D. it depends on the elevation where the arrows are launched. E. it depends on the elevation where the arrows land.
参考答案: B
本题详细解析:
暂无
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