题目内容
某辆汽车运动过程的速度图象如图,则汽车在0--10s和 10--15s内
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016503493375.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250016503493375.jpg)
A.位移不相等 |
B.平均速度相等 |
C.速度变化相同 |
D.加速度相同 |
AB
试题分析:v-t图像与坐标轴围成的面积表示物体的位移大小,故从图中可得:
在
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650365415.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650380928.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650396967.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650411776.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650427998.png)
在
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650443454.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650458868.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650474910.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650489801.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825001650505923.png)
所以位移,速度变化量,加速度都不相等,但是平均速度相等,AB正确,CD错误;
![](http://thumb2018.1010pic.com/images/loading.gif)
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题目内容
A.位移不相等 |
B.平均速度相等 |
C.速度变化相同 |
D.加速度相同 |