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]
95.39: A car starts from rest v o2 /lt*+y uv6e7slxtand ac5 bpsb6djt g3(celerates at $0.80\;m/s^2$ for 10 s. It then continues at constant velocity. Twenty seconds (20 s) after it began to move, the car has:
A. velocity 8.0 m/s and has traveled 40 m.
B. velocity 8.0 m/s and has traveled 80 m.
C. velocity 8.0 m/s and has traveled 120 m.
D. velocity 16 m/s and has traveled 160 m.
E. velocity 16 m/s and has traveled 320 m.
参考答案: C
本题详细解析:
暂无
|