题目内容
如图所示。一辆在水平公路上匀速行驶的汽车,突然做匀减速直线运动,车厢后壁架子上的小物体A向前飞出落在车厢地板上,架子距离车厢地板
面的高度为1.25米,落地点距离后壁架子边缘水平距离为1米,则汽车做匀减速运动的加速度大小是多少?(
)![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319428705.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412231939772.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319412471.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319428705.gif)
8m/s2
物体A的落地时间:
(2分)
物体A的水平位移:
(2分)
汽车的位移:
(2分)
(2分)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319443620.gif)
物体A的水平位移:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319459363.gif)
汽车的位移:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319475543.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412231949072.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122319490670.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
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