一道高考物理题,解析没看懂,质量为M、长为根号3L的杆水平放置,杆两端A、B系着长为3L的不可伸长且光滑的柔软轻绳,绳上套着一质量为m的小铁环.已知重力加速度为g,不计空气影响.(1)现
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![一道高考物理题,解析没看懂,质量为M、长为根号3L的杆水平放置,杆两端A、B系着长为3L的不可伸长且光滑的柔软轻绳,绳上套着一质量为m的小铁环.已知重力加速度为g,不计空气影响.(1)现](/uploads/image/z/4811958-54-8.jpg?t=%E4%B8%80%E9%81%93%E9%AB%98%E8%80%83%E7%89%A9%E7%90%86%E9%A2%98%2C%E8%A7%A3%E6%9E%90%E6%B2%A1%E7%9C%8B%E6%87%82%2C%E8%B4%A8%E9%87%8F%E4%B8%BAM%E3%80%81%E9%95%BF%E4%B8%BA%E6%A0%B9%E5%8F%B73L%E7%9A%84%E6%9D%86%E6%B0%B4%E5%B9%B3%E6%94%BE%E7%BD%AE%2C%E6%9D%86%E4%B8%A4%E7%AB%AFA%E3%80%81B%E7%B3%BB%E7%9D%80%E9%95%BF%E4%B8%BA3L%E7%9A%84%E4%B8%8D%E5%8F%AF%E4%BC%B8%E9%95%BF%E4%B8%94%E5%85%89%E6%BB%91%E7%9A%84%E6%9F%94%E8%BD%AF%E8%BD%BB%E7%BB%B3%2C%E7%BB%B3%E4%B8%8A%E5%A5%97%E7%9D%80%E4%B8%80%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E5%B0%8F%E9%93%81%E7%8E%AF%EF%BC%8E%E5%B7%B2%E7%9F%A5%E9%87%8D%E5%8A%9B%E5%8A%A0%E9%80%9F%E5%BA%A6%E4%B8%BAg%2C%E4%B8%8D%E8%AE%A1%E7%A9%BA%E6%B0%94%E5%BD%B1%E5%93%8D%EF%BC%8E%EF%BC%881%EF%BC%89%E7%8E%B0)
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