Physics Unit2: Kinematics One Dimensional Motion (id: 36bf10ffb)

本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理

[单选题]
A motorist travels 160 km at 80 km/h and 160 km at 1v0ym /vsp rw3(00 km/h. What is the averh;hi y/7;g. plque(voage uhqgi ;e/p y7.(h;olv speed of the motorist for this trip?

A. 84 km/h
B. 89 km/h
C. 90 km/h
D. 91 km/h


参考答案:  B


本题详细解析: 暂无

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