一质量为m的物块恰好静止在倾角为的斜面上.现对物块施加一个竖直向下的恒力F,如图所示.则物块A.仍处于静止状态怎么知道物块所受的合力不变,摩擦力不变?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 16:31:25
![一质量为m的物块恰好静止在倾角为的斜面上.现对物块施加一个竖直向下的恒力F,如图所示.则物块A.仍处于静止状态怎么知道物块所受的合力不变,摩擦力不变?](/uploads/image/z/4361884-52-4.jpg?t=%E4%B8%80%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E7%89%A9%E5%9D%97%E6%81%B0%E5%A5%BD%E9%9D%99%E6%AD%A2%E5%9C%A8%E5%80%BE%E8%A7%92%E4%B8%BA%E7%9A%84%E6%96%9C%E9%9D%A2%E4%B8%8A.%E7%8E%B0%E5%AF%B9%E7%89%A9%E5%9D%97%E6%96%BD%E5%8A%A0%E4%B8%80%E4%B8%AA%E7%AB%96%E7%9B%B4%E5%90%91%E4%B8%8B%E7%9A%84%E6%81%92%E5%8A%9BF%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA.%E5%88%99%E7%89%A9%E5%9D%97A%EF%BC%8E%E4%BB%8D%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%E6%80%8E%E4%B9%88%E7%9F%A5%E9%81%93%E7%89%A9%E5%9D%97%E6%89%80%E5%8F%97%E7%9A%84%E5%90%88%E5%8A%9B%E4%B8%8D%E5%8F%98%2C%E6%91%A9%E6%93%A6%E5%8A%9B%E4%B8%8D%E5%8F%98%3F)
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