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B.沿斜面加速下滑C.受到的摩擦力不便D.受到的合外力增大 不是静摩
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![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B.沿斜面加速下滑C.受到的摩擦力不便D.受到的合外力增大 不是静摩](/uploads/image/z/4361885-53-5.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%81B%EF%BC%8E%E6%B2%BF%E6%96%9C%E9%9D%A2%E5%8A%A0%E9%80%9F%E4%B8%8B%E6%BB%91C%EF%BC%8E%E5%8F%97%E5%88%B0%E7%9A%84%E6%91%A9%E6%93%A6%E5%8A%9B%E4%B8%8D%E4%BE%BFD%EF%BC%8E%E5%8F%97%E5%88%B0%E7%9A%84%E5%90%88%E5%A4%96%E5%8A%9B%E5%A2%9E%E5%A4%A7+%E4%B8%8D%E6%98%AF%E9%9D%99%E6%91%A9)
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