题目内容
如图所示,质量不等的木块A和B的质量分别为m1和m2,置于光滑的水平面上.当水平力F作用于左端A上,两物体一起做匀加速运动时,A、B间作用力大小为F1.当水平力F作用于右端B上,两物体一起做匀加速运动时,A、B间作用力大小为F2,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001533471882.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001533631817.png)
A.在两次作用过程中,物体的加速度的大小相等
B.在两次作用过程中,![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153379532.png)
C.在两次作用过程中,![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153394516.png)
D.在两次作用过程中,![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153394654.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001533471882.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250001533631817.png)
A.在两次作用过程中,物体的加速度的大小相等
B.在两次作用过程中,
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153379532.png)
C.在两次作用过程中,
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153394516.png)
D.在两次作用过程中,
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153394654.png)
AC
试题分析:当水平力F作用于左端A上,两物体一起做匀加速运动时,由牛顿第二定律,可得整体的加速度
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153410705.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153425888.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153410705.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153457881.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153394516.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000153488694.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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