题目内容
(13分)在水平桌面上沿一条
直线放两个完全相同的小物块A和B(可看作质点)质量均为m,它们相距s。B到桌边的距离是2s。对A施以瞬间水平冲量I,使A沿A、B连线以速度v0向B运动。设两物体碰撞时间很短,碰后不再分离。为使两物体能发生碰撞,且碰撞后又不会离开桌面,求:(1)物体A、B与水平面间的动摩擦因数μ应满足什么条件。(2)若
,那么A、B碰撞过程系统损失的动能是多少?A、B停止运动时,到桌面右边缘的距离s´是多少?![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241223305822331.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412233053572.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330566438.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241223305822331.jpg)
(1)![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330597675.gif)
(2)
,![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330629240.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330597675.gif)
(2)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330613422.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824122330629240.gif)
略
![](http://thumb2018.1010pic.com/images/loading.gif)
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