高一物理 力学如图所示,用两段直径均为d=0.02m,且相互平行的小圆棒A和B水平地支起一根长为L=0.64m、质量均匀分布的木条.设木条与两圆棒之间的静摩擦因数μ0=0.4,动摩擦因数μ=0.2.现使A棒固定
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![高一物理 力学如图所示,用两段直径均为d=0.02m,且相互平行的小圆棒A和B水平地支起一根长为L=0.64m、质量均匀分布的木条.设木条与两圆棒之间的静摩擦因数μ0=0.4,动摩擦因数μ=0.2.现使A棒固定](/uploads/image/z/2383398-54-8.jpg?t=%E9%AB%98%E4%B8%80%E7%89%A9%E7%90%86+%E5%8A%9B%E5%AD%A6%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E7%94%A8%E4%B8%A4%E6%AE%B5%E7%9B%B4%E5%BE%84%E5%9D%87%E4%B8%BAd%3D0.02m%2C%E4%B8%94%E7%9B%B8%E4%BA%92%E5%B9%B3%E8%A1%8C%E7%9A%84%E5%B0%8F%E5%9C%86%E6%A3%92A%E5%92%8CB%E6%B0%B4%E5%B9%B3%E5%9C%B0%E6%94%AF%E8%B5%B7%E4%B8%80%E6%A0%B9%E9%95%BF%E4%B8%BAL%3D0.64m%E3%80%81%E8%B4%A8%E9%87%8F%E5%9D%87%E5%8C%80%E5%88%86%E5%B8%83%E7%9A%84%E6%9C%A8%E6%9D%A1.%E8%AE%BE%E6%9C%A8%E6%9D%A1%E4%B8%8E%E4%B8%A4%E5%9C%86%E6%A3%92%E4%B9%8B%E9%97%B4%E7%9A%84%E9%9D%99%E6%91%A9%E6%93%A6%E5%9B%A0%E6%95%B0%CE%BC0%3D0.4%2C%E5%8A%A8%E6%91%A9%E6%93%A6%E5%9B%A0%E6%95%B0%CE%BC%3D0.2.%E7%8E%B0%E4%BD%BFA%E6%A3%92%E5%9B%BA%E5%AE%9A)
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