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 to the East (+x dirs+8bbz:b0- hehha-h o 8yx*fjection) begins to slow down apfv lezu-;rz (lb09)bj) z(xgs it approaches a traffic light. Make a statement concerning its acceler9 z ux)b-(r pzvlfz(g; )0ebjlation.
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: B
本题详细解析:
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