gc textbook chapter 2 Kinematics in One Dimension (id: ba2c2468b)

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 2–36 is a positiol azj a0.ymv):n versus time graph f1h gmw8 o1uuc)or the motion of an object along the x axis. Consider the time interval from A to 1 )ugwumho1 8cB. (a) Is the object moving in the positive or negative direction? (b) Is the object speeding up or slowing down? (c) Is the acceleration of the object positive or negative? Now consider the time interval from D to E. (d) Is the object moving in the positive or negative direction? (e) Is the object speeding up or slowing down? (f) Is the acceleration of the object positive or negative? (g) Finally, answer these same three questions for the time interval from C to D.

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