本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理
[单选题]
A ball is thrown vertically upwarkvz3f h 24g,bid with 26w fjx+p:pbl1p3rg39 vihrs a speed v. An identical second ball is thrown upward with a speed 2v (twice as fast). What is the ratio of the maximum height of the second ball to that of the first ball? (How many times higsp vg:w3+2p1r fp xb39 i6lrhjher does the second ball go than the first ball?)
A. 4:1
B. 2:1
C. 1.7:1
D. 1.4:1
参考答案: A
本题详细解析:
暂无
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