问题:
发布时间:2020-03-13
有一则“守株待兔”的古代寓言,设兔子的头部受到大小等于自身重量的打击时,即可致死。假若兔子与树桩作用时间大约为
,则若要被撞死,兔子奔跑的速度至少为(
( )
A.![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023943360.gif)
B.![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023959389.gif)
C.![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023974362.gif)
D.![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023990387.gif)
有一则“守株待兔”的古代寓言,设兔子的头部受到大小等于自身重量的打击时,即可致死。假若兔子与树桩作用时间大约为
,则若要被撞死,兔子奔跑的速度至少为(
( )
![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023912241.gif)
![](http://picflow.koolearn.com/upload/papers//20140824/20140824122023927493.gif)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
参考答案: