gc textbook chapter 2 Kinematics in One Dimension (id: 5c73fdec2)

本题目来源于试卷: gc textbook chapter 2 Kinematics in One Dimension，类别为 IB物理学

[问答题]
Figure 2–29 shows thed9vfe wl0se 85 velo/ fdksb9 zt2/icity of a train as a function of time. (a) At what time was its velocity greatest? (b) During what period9/zbi t s2fk/ds, if any, was the velocity constant? (c) During what periods, if any, was the acceleration constant? (d) When was the magnitude of the acceleration greatest?

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