名校
1 . 水车在古代是进行灌溉引水的工具,是人类的一项古老的发明,也是人类利用自然和改造自然的象征.如图是一个半径为
的水车,一个水斗从点
出发,沿圆周按逆时针方向匀速旋转,且旋转一周用时6秒.经过
秒后,水斗旋转到
点,设点
的坐标为
,其纵坐标满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72a564a9d0eeda9e1b09befa83c3f7b.png)
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900099717185536/2903047430569984/STEM/5520daff-706b-4808-a22d-dd963f0420a4.png?resizew=162)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900099717185536/2903047430569984/STEM/a116e558-9085-4c56-8923-6a4b65a989e1.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bcf20c671a7acbcd10944a2e856fb4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f72a564a9d0eeda9e1b09befa83c3f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8071722c6068de564d87c238f988545.png)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900099717185536/2903047430569984/STEM/5520daff-706b-4808-a22d-dd963f0420a4.png?resizew=162)
![](https://img.xkw.com/dksih/QBM/2022/1/22/2900099717185536/2903047430569984/STEM/a116e558-9085-4c56-8923-6a4b65a989e1.png?resizew=154)
A.![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() |
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2022-01-26更新
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