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]
03.01: The diagram below is 7gejhfq-6g 3:m scxet(sm.g)a snapshot of three cars all mov )5 nrdlb/rg,ifmnk)km npu ,/vfe+4* ing counterclockwise during a kvg k 5rur npfn4 n/m)b),*m/l +d,ief one lap race on an elliptical track.
Which car has had the lowest average speed during the race so far?

A. carA
B. car B
C. car C
D. all three cars have had the same average speed
E. cannot be determined with information provided
参考答案: C
本题详细解析:
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