A car in a drag race started from rest and accelerated constantly to avelocity of 50m/s when it reached the end of a 500m road. What was thecar’s rate of acceleration?
A.
−5.0 m/s 2
B.
−2.5 m/s 2
C.
0.5 m/s 2
D.
2.5 m/s 2
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】. When __ New Year’s Eve arrives, I can still remember the wonderful night in _______ winter of 2002.