Physics Unit2: Kinematics One Dimensional Motion (id: 76ebdb6d4)

本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 国际高中通用物理

[单选题]
A motorist travels for 3.0 h at f 0 wz7,t5jpq ar/+qtk80 km/h and 2.0 h at 100 km/h. What zya dwf3as9izf( ,b(0 is her average speed s9 byz(0(ifzaa,3fd wfor the trip?

A. 85 km/h
B. 88 km/h
C. 90 km/h
D. 92 km/h


参考答案:  B


本题详细解析: 暂无

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