Physics Unit2: Kinematics One Dimensional Motion (id: 768295e16)

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]
An airplane travels at 300 mi/h south for 2.00 h ande tau7s;gl/z*vkn,d0 wvg(;sj k em*w83lw* nthen at 250 mi/h north for 750 miles. weg8 (wm3 *;*ksv lnwjWhat is the average speed for the trip?

A. 260 mi/h
B. 270 mi/h
C. 275 mi/h
D. 280 mi/h


参考答案:  B


本题详细解析: 暂无

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