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【简答题】
位于铅垂面内的平面机构如图所示，轻绳水平段连接一段刚性系数为k的弹簧，并跨过质量为M、半径为R的定滑轮，轻绳的另一端系一质量为m的物块A，试求：(1)此系统的运动微分方程；(2)若在静平衡位置仅给A物块一初速度v 0 ，求其运动规律。
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反馈参考答案：
举一反三
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