Physics Bowl by Topic 2: Kinematics - part I General Motion (id: 170f32fa6)

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]
02.01: The graph represents thengy(cx mms)1 y(p0z 7b relationship between distjtos b xg x1 -u/m2,mtb tedi.bp5c3-ca+g j/8ance and time for an object that is moving along a straigh xa8t xtcm m/o2ij +dje5gu tc./p1b-b bsg,3-t line. What is the instantaneous speed of the object at t = 5.0 seconds?

A. 0.0 m/s
B. 0.8 m/s
C. 2.5 m/s
D. 4.0 m/s
E. 6.8 m/s


参考答案:  B


本题详细解析: 暂无

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