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 traveling toi* 6,rfg0m+d8zuikmks ej5-y the West (-x direction) f m4 -j.+jodmmsh(9kebegins to slow down as it approaches a traffic light. Make a statement concernins h4 k f+jde.-o9j(mmmg its acceleration.
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:
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