本题目来源于试卷: Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.16: A toy car initially moves to the right at 60.0 cm+tlld*o -hh(0spl. gl5n09ik f;cfq m/s. Five seconds la8s 2wctry0or( ter, the car is moving at 40.0 cm/s to the left. The total displacement of the car during this time is 10.0 cm to the left of where it started. Which one of the following choices best represents th8rs0 2wyc(rtoe magnitude of the average velocity of the car during the five second motion?
A. 50.0 cm/s
B. 10.0 cm/s
C. 4.0 cm/s
D. 2.0 cm/s
E. 0.40 cm/s
参考答案: D
本题详细解析:
暂无
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