本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.29: A vehicle completes one lap arou vs s;389e,xiq iv1 qwm:vs7qhnd a circular track at an average speed oi , ;siqqh1qw9vm 3sx:v7se8 v d4gsbeua*f14pz 1062)a:tlmx eawqez 7+eduf 50 m/s and then completes a second lap at an average speed o lzd* 7)bfzee+4a p2wus1ade qtue4 1m6:0xagf $V$. The average speed of the vehicle for the completion of both laps was 80 m/s. What was the average speed $V$ of the second lap?
A. 100 m/s
B. 110 m/s
C. 125 m/s
D. 150 m/s
E. 200 m/s
参考答案: E
本题详细解析:
暂无
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