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 do h7cl/3ole(ft h8n7right at 60.0 cm/s. Five seconds later,,,ziwgp9qgwq + (x2b o4o/v :po(o qmq 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 whg wv(q( /,+qo2 4, pqxw9oiqpzog:bmoere it started. Which one of the following choices best represents the 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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