Physics Unit6: Work and Energy (id: d4e33e293)

本题目来源于试卷: Physics Unit6: Work and Energy，类别为 通用国际物理

[单选题]
Car J moves twice as fast as car K, and car J kg.rm3elxvgc; ; ,ee0 jgs* 9rhas half the mass of car 3vubu59k 4o jc-v0v9(efhxwz,hjg+ eg ff9/l K. The kinetic energy of car J, compared to car K o vc-j+ee9,gxg4v 0uv bf j9/fuhhkzf9 53(lwis

A. the same.
B. 2 to 1.
C. 4 to 1.
D. 1 to 2.


参考答案:  B


本题详细解析: 暂无

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