5.19-物理1/ 9.图七所示,长为L的杆一端用铰链固定于O点处,另一端固定小球A.杆靠在质量为M,高为h的物块上.若物块以速度v向右运动且杆与物块始终保持接触,则当杆与水平方向夹角为θ时,小球A
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![5.19-物理1/ 9.图七所示,长为L的杆一端用铰链固定于O点处,另一端固定小球A.杆靠在质量为M,高为h的物块上.若物块以速度v向右运动且杆与物块始终保持接触,则当杆与水平方向夹角为θ时,小球A](/uploads/image/z/14172357-21-7.jpg?t=5.19-%E7%89%A9%E7%90%861%2F+9.%E5%9B%BE%E4%B8%83%E6%89%80%E7%A4%BA%2C%E9%95%BF%E4%B8%BAL%E7%9A%84%E6%9D%86%E4%B8%80%E7%AB%AF%E7%94%A8%E9%93%B0%E9%93%BE%E5%9B%BA%E5%AE%9A%E4%BA%8EO%E7%82%B9%E5%A4%84%2C%E5%8F%A6%E4%B8%80%E7%AB%AF%E5%9B%BA%E5%AE%9A%E5%B0%8F%E7%90%83A.%E6%9D%86%E9%9D%A0%E5%9C%A8%E8%B4%A8%E9%87%8F%E4%B8%BAM%2C%E9%AB%98%E4%B8%BAh%E7%9A%84%E7%89%A9%E5%9D%97%E4%B8%8A.%E8%8B%A5%E7%89%A9%E5%9D%97%E4%BB%A5%E9%80%9F%E5%BA%A6v%E5%90%91%E5%8F%B3%E8%BF%90%E5%8A%A8%E4%B8%94%E6%9D%86%E4%B8%8E%E7%89%A9%E5%9D%97%E5%A7%8B%E7%BB%88%E4%BF%9D%E6%8C%81%E6%8E%A5%E8%A7%A6%2C%E5%88%99%E5%BD%93%E6%9D%86%E4%B8%8E%E6%B0%B4%E5%B9%B3%E6%96%B9%E5%90%91%E5%A4%B9%E8%A7%92%E4%B8%BA%CE%B8%E6%97%B6%2C%E5%B0%8F%E7%90%83A)
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