用相互垂直的轻绳OA与OB将一个质量为m的物体挂在水平天花板上,物体处于静止状态,轻绳OB与天花板夹角...用相互垂直的轻绳OA与OB将一个质量为m的物体挂在水平天花板上,物体处于静止状态,轻
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![用相互垂直的轻绳OA与OB将一个质量为m的物体挂在水平天花板上,物体处于静止状态,轻绳OB与天花板夹角...用相互垂直的轻绳OA与OB将一个质量为m的物体挂在水平天花板上,物体处于静止状态,轻](/uploads/image/z/8402404-4-4.jpg?t=%E7%94%A8%E7%9B%B8%E4%BA%92%E5%9E%82%E7%9B%B4%E7%9A%84%E8%BD%BB%E7%BB%B3OA%E4%B8%8EOB%E5%B0%86%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E7%89%A9%E4%BD%93%E6%8C%82%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%A4%A9%E8%8A%B1%E6%9D%BF%E4%B8%8A%2C%E7%89%A9%E4%BD%93%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%2C%E8%BD%BB%E7%BB%B3OB%E4%B8%8E%E5%A4%A9%E8%8A%B1%E6%9D%BF%E5%A4%B9%E8%A7%92...%E7%94%A8%E7%9B%B8%E4%BA%92%E5%9E%82%E7%9B%B4%E7%9A%84%E8%BD%BB%E7%BB%B3OA%E4%B8%8EOB%E5%B0%86%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E7%89%A9%E4%BD%93%E6%8C%82%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%A4%A9%E8%8A%B1%E6%9D%BF%E4%B8%8A%2C%E7%89%A9%E4%BD%93%E5%A4%84%E4%BA%8E%E9%9D%99%E6%AD%A2%E7%8A%B6%E6%80%81%2C%E8%BD%BB)
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