题目内容
如图所示,质量、初速度大小都相同的A、B、C三个小球,在同一水平面上,A球竖直上抛,B球以倾斜角θ斜向上抛,空气阻力不计,C球沿倾角为θ的光滑斜面上滑,它们上升的最大高度分别为hA、hB、hC,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250007578893006.jpg)
A.hA=hB=hC B.hA=hB<hC C.hA=hB>hC D.hA=hC>hB
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250007578893006.jpg)
A.hA=hB=hC B.hA=hB<hC C.hA=hB>hC D.hA=hC>hB
D
试题分析:根据机械能守恒定律,
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000757904970.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825000757904529.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容