题目内容
如右图是物体做直线运动的x—t图象,下列说法正确的是( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241446019401841.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241446019401841.png)
A.0~![]() ![]() ![]() |
B.![]() ![]() |
C.0~![]() |
D.整个过程中,物体运动的位移等于梯形的面积 |
B
试题分析:这是位移—时间图象,描述的是位移随时间的变化规律。0~
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602142292.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602252329.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602345328.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602345328.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602142292.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824144602252329.png)
点评:在处理运动学图像问题时应先明确图像的类型,这也是学生在求解此类问题时容易忽视的
![](http://thumb2018.1010pic.com/images/loading.gif)
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