题目内容
如图所示,固定在轻质弹簧两端,质量分别是
=0.5kg,
=1.49kg的两个物体,置于光滑水平面上,
靠在光滑竖直墙上.现有一个m=0.01kg的子弹水平射入
中(没有穿出),使弹簧压缩而具有12J的弹性势能,再后
都将向右运动,试求:
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203282251345.gif)
(1)子弹入射前的速度v;
(2)竖直墙对
的冲量.
(3)运动过程中弹簧可具有的最大弹性势能.
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120327913953.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120327929959.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120327913953.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120327929959.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203281781043.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203282251345.gif)
(1)子弹入射前的速度v;
(2)竖直墙对
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120327913953.gif)
(3)运动过程中弹簧可具有的最大弹性势能.
(1)600m/s (2)12 N·s,方向水平向右(3)3J
(1)由
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203282561199.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203282721827.gif)
(2)I=
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203284121080.gif)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241203284282158.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目