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/s. Five seconds la tk9ozu 5t,o+tgf ))gf8u1evt(hx) 3 nttfa2q 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 the magnitude of the average velocity of the ca)2 t( xtthu8vf eq1na3r 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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