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]
Suppose that a car trasf d m/tt(5 r- ylgpe3jx.7h2gveling e lyt m.+ne4+cxe /:jzd542vng0qvjyx3q+u yto the West (-x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its accel x zn:myvc edvge+.0el/t q4njqx52 3yu++4y jeration.
A. The car is decelerating, and its acceleration is positive.
B. The car is decelerating, and its acceleration is negative.
C. The acceleration is zero.
D. A statement cannot be made using the information given.
参考答案: A
本题详细解析:
暂无
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