本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion,类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.30: Two cars P and Q pd.1h/qus( tm, pzngz:+q)wl, each start from rest at the origin and will move along the x-axis. The acceleration vs. time graph for each car is shown. Which one of the following cho wq+ znzg)p: ,lices correctly identifies the relationship for both the speeds $v$ and the positions $x$ of the cars at time T?
A. $v_P = v_Q$ and $x_P > x_Q$
B. $v_P > v_Q$ and $x_P > x_Q$
C. $v_P = v_Q$ and $x_P = x_Q$
D. $v_P < v_Q$ and $x_P < x_Q$
E. $v_P = v_Q$ and $x_P < x_Q$
参考答案: A
本题详细解析:
暂无
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