Physics Unit2: Kinematics One Dimensional Motion (id: 7cb676d57)

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]
If you run a complete loop aroubyar1n+y ju9xbks;z5 +p hst(z b1;)dnd an opb6id mnpn o84)t3-l lutdoor track (400 m), in 100 s, your average velocittlpn4o- 8dm lpni36b) y is

A. 0.25 m/s.
B. 4.0 m/s.
C. 40,000 m/s.
D. zero.


参考答案:  D


本题详细解析: 暂无

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