Newton’s law of motion (id: 5047c52df)

本题目来源于试卷: Newton’s law of motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
02.28: The diagram below shows h yea8h*zp --fthree roller coaster tracks of equal length. Asl;+md 5catgn;x8rkvaaj lyh3 +;y5m9 sume that on all tracks the roller coaster carts start from rest at the same elevation and moves fr+lagm3jdvtka nh;; ar8 55+yc m l;x9yictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

A. CartA
B. Cart B
C. Cart C
D. All would reach the finish at the sametime
E. More information would be required


参考答案:  A


本题详细解析: 暂无

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