题目内容
在如图所示装置中,两物体质量分别为m1、m2,悬点a、b间的距离远大于滑轮的直径,不计一切摩擦,整个装置处于静止状态。由图可知
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013176271902.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013176271902.jpg)
A.α一定等于β |
B.m1一定大于m2 |
C.m1一定小于2m2 |
D.m1可能大于2m2 |
AC
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250013176433492.jpg)
试题分析:据题意,a、b段是同一根绳子,张力处处相等,则有:
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317658706.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317674789.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317705451.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317721661.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317736820.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001317752827.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.α一定等于β |
B.m1一定大于m2 |
C.m1一定小于2m2 |
D.m1可能大于2m2 |