Physics Unit2: Kinematics One Dimensional Motion (id: ea73b925d)

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]
When is the average velocity of an ob. 7w.lm liruur:i:ge 8+hn:foject equal to the instan ynxb 5yd(8e :lsomy:0t7dy(wtaneous velocity?

A. always
B. never
C. only when the velocity is constant
D. only when the velocity is increasing at a constant rate


参考答案:  C


本题详细解析: 暂无

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