粮食储存仓库常常需要利用倾斜的传送带将装满粮食的麻袋运送到高处,如图21所示,已知某仓库的传送带长度为L0m,与水平面的夹角为30°,在电动机的带动下,传送带以v0m/s的恒定速度向斜上方运
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![粮食储存仓库常常需要利用倾斜的传送带将装满粮食的麻袋运送到高处,如图21所示,已知某仓库的传送带长度为L0m,与水平面的夹角为30°,在电动机的带动下,传送带以v0m/s的恒定速度向斜上方运](/uploads/image/z/3355972-52-2.jpg?t=%E7%B2%AE%E9%A3%9F%E5%82%A8%E5%AD%98%E4%BB%93%E5%BA%93%E5%B8%B8%E5%B8%B8%E9%9C%80%E8%A6%81%E5%88%A9%E7%94%A8%E5%80%BE%E6%96%9C%E7%9A%84%E4%BC%A0%E9%80%81%E5%B8%A6%E5%B0%86%E8%A3%85%E6%BB%A1%E7%B2%AE%E9%A3%9F%E7%9A%84%E9%BA%BB%E8%A2%8B%E8%BF%90%E9%80%81%E5%88%B0%E9%AB%98%E5%A4%84%2C%E5%A6%82%E5%9B%BE21%E6%89%80%E7%A4%BA%2C%E5%B7%B2%E7%9F%A5%E6%9F%90%E4%BB%93%E5%BA%93%E7%9A%84%E4%BC%A0%E9%80%81%E5%B8%A6%E9%95%BF%E5%BA%A6%E4%B8%BAL0m%2C%E4%B8%8E%E6%B0%B4%E5%B9%B3%E9%9D%A2%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA30%C2%B0%2C%E5%9C%A8%E7%94%B5%E5%8A%A8%E6%9C%BA%E7%9A%84%E5%B8%A6%E5%8A%A8%E4%B8%8B%2C%E4%BC%A0%E9%80%81%E5%B8%A6%E4%BB%A5v0m%2Fs%E7%9A%84%E6%81%92%E5%AE%9A%E9%80%9F%E5%BA%A6%E5%90%91%E6%96%9C%E4%B8%8A%E6%96%B9%E8%BF%90)
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