Physics Bowl by Topic 2: Kinematics - part I General Motion (id: fadc157f4)

本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
15.17: An object starts at the origin and r r5;0lvds pqzx*b/:e its vel82)6 iuohucj nocity along a line vs. time is graphed. Which onen8i)2uouj6c h of the following choices best gives the proper interval(s) of time for which the object is moving away from the origin?

A. Only for times 0 s < t< 3 s
B. Only for times 0 s < t < 5 s
C. Only for times 3 s < t < 5 s
D. Only for times 0 s< t < 7 s
E. For times 0 s < t < 3 s and 5 s < t < 9 s


参考答案:  D


本题详细解析: 暂无

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