题目内容
一质点绕半径为R的圆周运动了一圈,则其位移大小为 ,路程是 。若质点运动了
周,则其位移大小为 ,路程是 ,运动过程中最大位移是 最大路程是 。
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605200250.gif)
0;
;
;
;
;![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605262402.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605216360.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605231273.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605247410.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605262227.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605262402.gif)
如图所示,运动一圈位移是0 m,路程为
;若运动
周,则物体末位置在B点,位移大小
,路程为
;运动中最大位移为
,最大路程为
(n为圈数)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241156053723142.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605278397.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605200250.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605309316.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605325728.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605340409.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824115605356431.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241156053723142.jpg)
![](http://thumb2018.1010pic.com/images/loading.gif)
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