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]
01.03: The question so-ig d6k2r wbnvjc3*5vv0 yyv11 xk*refers to t .fsih h.f8i pxx/l/hq ci2 *.khe following scenario: At $t_0$, two cars moving along a highway are side-by-side as they pass a third car stopped on the side of the road. At this moment the driver of the first car steps on the brakes while the driver of the stopped car begins to accelerate. The diagram below show the positions of each car for the next 5 seconds.
Which of the three cars had the greatest average speed during these 5 seconds?
A. car #1
B. car #2
C. car #3
D. car #2 and car #3 had the same average speed
E. all three cars had the same average speed
参考答案: D
本题详细解析:
暂无
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