水平放置的三个不同材料制成的圆轮
,
,
,用不打滑的皮带相连,如图所示
俯视图
,三圆轮的半径之比为
,在三轮的边缘上分别放置一个小物块
可视为质点
。当主动轮
匀速转动时,三个小物块均恰好相对静止在各轮的边缘上。设小物块所受的最大静摩擦力等于滑动摩擦力,小物块的质量分别为
、
、
,小物块与轮
、
、
接触面间的动摩擦因数分别为
、
、
,
、
、
三轮转动的角速度分别为
、
、
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6277963d14f77e07f850672cbdfd12f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94a32654aa2e6b9bfe001e0ad655700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617721212f0ea41907c484acf6716b97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e16c2e1d6b1a8cbe5e2b68d68851105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48533cc1cc77e9438469a264e03355e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c93f59328724add25d173836bfce98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e0f0b5c188fd769c9562a02599181c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e8babee63bfc889ae5a34632284bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939e1398af0dbf1c375131b82552b0cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5db01031c9427d8cfa93fb76f6b7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a66f7709c7664fb837e9edfd5675c29.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
20-21高一下·浙江·期中 查看更多[4]
(已下线)【新东方】高中物理20210513-031【2021】【高一下】第三章《圆周运动》章末复习题-鲁科版(2019)必修第二册第三章《圆周运动》章末复习题-鲁科版(2019)必修第二册安徽省安庆市第一中学2023-2024学年高一下学期第一次段考(期中)物理试卷
更新时间:2021-05-20 13:13:44
|
【知识点】 通过牛顿第二定律求解向心力
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【推荐1】如图,与水平面成30°的倾斜匀质圆盘绕垂直于盘面的中心固定轴匀速转动,一根不可伸长的细绳穿过圆盘中心,圆盘上方部分细绳与圆盘表面平行且与圆盘间无作用力,一端悬挂质量为
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【推荐2】如图所示,放于竖直面内的光滑金属细圆环半径为R,质量为m的带孔小球穿于环上,同时有一长为R的细绳一端系于球上,另一端系于圆环最低点,绳能承受的最大拉力为2mg,重力加速度的大小为g,当圆环以角速度ω绕竖直直径转动时,下列说法错误的是( )
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解题方法
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