一道高中物理题卡壳了,解析看不懂一块足够长的白板,位于水平桌面上,处于静止状态.一石墨块(可视为质点)静止在白板上.石墨块与白板间有摩擦,滑动摩擦系数为μ.突然,使白板以恒定
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![一道高中物理题卡壳了,解析看不懂一块足够长的白板,位于水平桌面上,处于静止状态.一石墨块(可视为质点)静止在白板上.石墨块与白板间有摩擦,滑动摩擦系数为μ.突然,使白板以恒定](/uploads/image/z/5106069-45-9.jpg?t=%E4%B8%80%E9%81%93%E9%AB%98%E4%B8%AD%E7%89%A9%E7%90%86%E9%A2%98%E5%8D%A1%E5%A3%B3%E4%BA%86%2C%E8%A7%A3%E6%9E%90%E7%9C%8B%E4%B8%8D%E6%87%82%E4%B8%80%E5%9D%97%E8%B6%B3%E5%A4%9F%E9%95%BF%E7%9A%84%E7%99%BD%E6%9D%BF%2C%E4%BD%8D%E4%BA%8E%E6%B0%B4%E5%B9%B3%E6%A1%8C%E9%9D%A2%E4%B8%8A%2C%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%EF%BC%8E%E4%B8%80%E7%9F%B3%E5%A2%A8%E5%9D%97%EF%BC%88%E5%8F%AF%E8%A7%86%E4%B8%BA%E8%B4%A8%E7%82%B9%EF%BC%89%E9%9D%99%E6%AD%A2%E5%9C%A8%E7%99%BD%E6%9D%BF%E4%B8%8A%EF%BC%8E%E7%9F%B3%E5%A2%A8%E5%9D%97%E4%B8%8E%E7%99%BD%E6%9D%BF%E9%97%B4%E6%9C%89%E6%91%A9%E6%93%A6%2C%E6%BB%91%E5%8A%A8%E6%91%A9%E6%93%A6%E7%B3%BB%E6%95%B0%E4%B8%BA%CE%BC%EF%BC%8E%E7%AA%81%E7%84%B6%2C%E4%BD%BF%E7%99%BD%E6%9D%BF%E4%BB%A5%E6%81%92%E5%AE%9A)
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