图6是工人用滑轮组提升水中实心物体A的示意图.当物体A完全在水面下被匀速提升到杠杆刚好水平时,工人对绳子的拉力为FA,各段绳子都竖直,工人对水平地面的压强为0.4×104Pa,水平地面对工人
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![图6是工人用滑轮组提升水中实心物体A的示意图.当物体A完全在水面下被匀速提升到杠杆刚好水平时,工人对绳子的拉力为FA,各段绳子都竖直,工人对水平地面的压强为0.4×104Pa,水平地面对工人](/uploads/image/z/5022859-67-9.jpg?t=%E5%9B%BE6%E6%98%AF%E5%B7%A5%E4%BA%BA%E7%94%A8%E6%BB%91%E8%BD%AE%E7%BB%84%E6%8F%90%E5%8D%87%E6%B0%B4%E4%B8%AD%E5%AE%9E%E5%BF%83%E7%89%A9%E4%BD%93A%E7%9A%84%E7%A4%BA%E6%84%8F%E5%9B%BE.%E5%BD%93%E7%89%A9%E4%BD%93A%E5%AE%8C%E5%85%A8%E5%9C%A8%E6%B0%B4%E9%9D%A2%E4%B8%8B%E8%A2%AB%E5%8C%80%E9%80%9F%E6%8F%90%E5%8D%87%E5%88%B0%E6%9D%A0%E6%9D%86%E5%88%9A%E5%A5%BD%E6%B0%B4%E5%B9%B3%E6%97%B6%2C%E5%B7%A5%E4%BA%BA%E5%AF%B9%E7%BB%B3%E5%AD%90%E7%9A%84%E6%8B%89%E5%8A%9B%E4%B8%BAFA%2C%E5%90%84%E6%AE%B5%E7%BB%B3%E5%AD%90%E9%83%BD%E7%AB%96%E7%9B%B4%2C%E5%B7%A5%E4%BA%BA%E5%AF%B9%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E7%9A%84%E5%8E%8B%E5%BC%BA%E4%B8%BA0.4%C3%97104Pa%2C%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E5%AF%B9%E5%B7%A5%E4%BA%BA)
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