题目内容
如图所示,一个小滑块静止在高度h=1.35m的水平桌面上,小滑块到桌上右边缘的距离S=1.0m,小滑块与桌面的动摩擦因数
=0.35。现给小滑块一个瞬间作用力,使其获得
=4m/s的初速度,沿水平桌面向右滑动,不计空气阻力,取g=10/s2。求:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241146313373453.jpg)
(1)小滑块落地瞬间的速度大小
(2)小滑块从开始运动到落地经过的时间。
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631072219.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631259230.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241146313373453.jpg)
(1)小滑块落地瞬间的速度大小
(2)小滑块从开始运动到落地经过的时间。
(1)![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631337308.gif)
(2)![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631415285.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631337308.gif)
(2)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631415285.gif)
(1)![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631431301.gif)
木块落地时速度大小
(2)桌面上运动的时间
下落时间![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631571461.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631587483.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631431301.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631447373.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631478343.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631493465.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631509338.gif)
木块落地时速度大小
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631525468.gif)
(2)桌面上运动的时间
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631540438.gif)
下落时间
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631571461.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824114631587483.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
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