题目内容
一小球以一定的水平初速度V0抛出,落地时的速度为Vt,求:(1)小球在空中飞行的时间(2)小球抛出点离地面的高度(3)小球的水平位移X
(1)t=
/g
(2)h=(vt2-vo2)/2g
(3)X=v0
/g
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122052163427.gif)
(2)h=(vt2-vo2)/2g
(3)X=v0
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122052163427.gif)
(1)t=vy/g=
/g (2分)
(2)h=(vt2-vo2)/2g (3分)
(3)X=v0t=v0
/g (3分)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122052163427.gif)
(2)h=(vt2-vo2)/2g (3分)
(3)X=v0t=v0
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122052163427.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
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