题目内容
两质量之比为
的卫星绕地球做匀速圆周运动,运动的轨道半径之比
,则下列关于两颗卫星的说法中正确的是
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028774594.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028790583.png)
A.线速度大小之比为![]() |
B.向心加速度大小之比为![]() |
C.运动的周期之比为![]() |
D.动能之比为![]() |
D
试题分析:人造卫星绕地球做匀速圆周运动,根据万有引力提供向心力,设卫星的质量为m、轨道半径为r、地球质量为M,有
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250050288831382.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028946732.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028961921.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028992723.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005029008338.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005029039382.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005029055424.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825005028852631.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
A.线速度大小之比为![]() |
B.向心加速度大小之比为![]() |
C.运动的周期之比为![]() |
D.动能之比为![]() |