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]
02.12: The diagram below represents a toy car starting 9qt+ hx/umq:5qm a7pa 6lqqje*l w/p 4z.hb px50i/uc from rest and uniformly accelerating across the floor. The time and distance traveled from the start are s z6ch0 .* wupl b5iqpeq/l4 xj/hown in the diagram.
What was the acceleration of the cart during the first 0.4 seconds?
A. $6.0\;m/s^2$
B. $9.8\;m/s^2$
C. $12\;m/s^2$
D. $25\;m/s^2$
E. $50\;m/s^2$
参考答案: C
本题详细解析:
暂无
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