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 cars are racing on a circular trac)xf2tdu9p2-w 5 un zdrk one kilometer in circumfe25 xuptd2wdn )u- rz9f0xw bmk2e khm2q(v);krence. The first car can circle the track in 15 seconds at top speed while the second car can circle the track in 12 seconds02 2k)e;b mqmkv(whk x 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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