关于天体运动如图所示,两个质量相等的物体A和B(可视为质点)用轻绳相连,分别以r和2r为半径围绕一个质量为M的天体做匀速圆周运动,两个物体与天体中心始终在一条直线上,已知万有引力常量
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![关于天体运动如图所示,两个质量相等的物体A和B(可视为质点)用轻绳相连,分别以r和2r为半径围绕一个质量为M的天体做匀速圆周运动,两个物体与天体中心始终在一条直线上,已知万有引力常量](/uploads/image/z/8279465-41-5.jpg?t=%E5%85%B3%E4%BA%8E%E5%A4%A9%E4%BD%93%E8%BF%90%E5%8A%A8%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%B8%A4%E4%B8%AA%E8%B4%A8%E9%87%8F%E7%9B%B8%E7%AD%89%E7%9A%84%E7%89%A9%E4%BD%93A%E5%92%8CB%28%E5%8F%AF%E8%A7%86%E4%B8%BA%E8%B4%A8%E7%82%B9%29%E7%94%A8%E8%BD%BB%E7%BB%B3%E7%9B%B8%E8%BF%9E%2C%E5%88%86%E5%88%AB%E4%BB%A5r%E5%92%8C2r%E4%B8%BA%E5%8D%8A%E5%BE%84%E5%9B%B4%E7%BB%95%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BAM%E7%9A%84%E5%A4%A9%E4%BD%93%E5%81%9A%E5%8C%80%E9%80%9F%E5%9C%86%E5%91%A8%E8%BF%90%E5%8A%A8%2C%E4%B8%A4%E4%B8%AA%E7%89%A9%E4%BD%93%E4%B8%8E%E5%A4%A9%E4%BD%93%E4%B8%AD%E5%BF%83%E5%A7%8B%E7%BB%88%E5%9C%A8%E4%B8%80%E6%9D%A1%E7%9B%B4%E7%BA%BF%E4%B8%8A%2C%E5%B7%B2%E7%9F%A5%E4%B8%87%E6%9C%89%E5%BC%95%E5%8A%9B%E5%B8%B8%E9%87%8F)
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