本题目来源于试卷: Rotational basic parameter，类别为 美国物理杯赛(Physics Bowl)
[单选题]
00.40: Suppose two caryz4mi pojxng- 6,u;u)s are racing4b6kkzl n4yw * on a circular track one kilometer in circumferencwb knz*yl64k4 e. The first car can circle the track in 15 seconds at top speed while the second car can circle the track in 12 seconds at top speed. How much lead does the first car need starting the last lap of the race not to lose?
A. at least 250 m
B. at least 200 m
C. at least 104 m
D. at least 83 m
E. at least 67 m
参考答案: A
本题详细解析:
暂无
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