题目内容
一根长为L、粗细均匀的轻绳,两端分别固定在天花板上的A、B两点.若在细绳的C处悬一重物,如图所示,则下列说法中正确的是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250043285252006.jpg)
A.若AC>CB,则增加重物的重力,AC段先断
B.若AC>CB,则增加重物的重力,BC段先断
C.若AC=CB,则将A端向左移时绳子容易断
D.若AC=CB,则将A端向右移时绳子容易断
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250043285252006.jpg)
A.若AC>CB,则增加重物的重力,AC段先断
B.若AC>CB,则增加重物的重力,BC段先断
C.若AC=CB,则将A端向左移时绳子容易断
D.若AC=CB,则将A端向右移时绳子容易断
BC
试题分析:设
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328541843.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328556468.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328572916.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328587925.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328556468.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825004328603520.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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