如图所示,倾角为c的斜面上静止放置3个质量均为m的木箱,相邻两个木箱的距离为L.工人用沿斜面得力推最下面的木箱使之上滑,整个过程中公认的力不变,最后恰好能推着3工人木箱匀速上滑.已
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![如图所示,倾角为c的斜面上静止放置3个质量均为m的木箱,相邻两个木箱的距离为L.工人用沿斜面得力推最下面的木箱使之上滑,整个过程中公认的力不变,最后恰好能推着3工人木箱匀速上滑.已](/uploads/image/z/5206983-15-3.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%80%BE%E8%A7%92%E4%B8%BAc%E7%9A%84%E6%96%9C%E9%9D%A2%E4%B8%8A%E9%9D%99%E6%AD%A2%E6%94%BE%E7%BD%AE3%E4%B8%AA%E8%B4%A8%E9%87%8F%E5%9D%87%E4%B8%BAm%E7%9A%84%E6%9C%A8%E7%AE%B1%2C%E7%9B%B8%E9%82%BB%E4%B8%A4%E4%B8%AA%E6%9C%A8%E7%AE%B1%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BAL.%E5%B7%A5%E4%BA%BA%E7%94%A8%E6%B2%BF%E6%96%9C%E9%9D%A2%E5%BE%97%E5%8A%9B%E6%8E%A8%E6%9C%80%E4%B8%8B%E9%9D%A2%E7%9A%84%E6%9C%A8%E7%AE%B1%E4%BD%BF%E4%B9%8B%E4%B8%8A%E6%BB%91%2C%E6%95%B4%E4%B8%AA%E8%BF%87%E7%A8%8B%E4%B8%AD%E5%85%AC%E8%AE%A4%E7%9A%84%E5%8A%9B%E4%B8%8D%E5%8F%98%2C%E6%9C%80%E5%90%8E%E6%81%B0%E5%A5%BD%E8%83%BD%E6%8E%A8%E7%9D%803%E5%B7%A5%E4%BA%BA%E6%9C%A8%E7%AE%B1%E5%8C%80%E9%80%9F%E4%B8%8A%E6%BB%91.%E5%B7%B2)
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