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 trave:tt+ bbpb/( hmling to the West (-x dh56p)qrn- oqvirection) begins to slow down as it approaches a traffic ligr )vn 65qhoqp-ht. Make a statement concerning 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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