如图,物体C重100N,在不计摩擦力和绳重的情况下,要匀速提起物种时,需加力F为28N,若滑轮规格相同,则每个滑轮重多少牛
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![如图,物体C重100N,在不计摩擦力和绳重的情况下,要匀速提起物种时,需加力F为28N,若滑轮规格相同,则每个滑轮重多少牛](/uploads/image/z/1523645-53-5.jpg?t=%E5%A6%82%E5%9B%BE%2C%E7%89%A9%E4%BD%93C%E9%87%8D100N%2C%E5%9C%A8%E4%B8%8D%E8%AE%A1%E6%91%A9%E6%93%A6%E5%8A%9B%E5%92%8C%E7%BB%B3%E9%87%8D%E7%9A%84%E6%83%85%E5%86%B5%E4%B8%8B%2C%E8%A6%81%E5%8C%80%E9%80%9F%E6%8F%90%E8%B5%B7%E7%89%A9%E7%A7%8D%E6%97%B6%2C%E9%9C%80%E5%8A%A0%E5%8A%9BF%E4%B8%BA28N%2C%E8%8B%A5%E6%BB%91%E8%BD%AE%E8%A7%84%E6%A0%BC%E7%9B%B8%E5%90%8C%2C%E5%88%99%E6%AF%8F%E4%B8%AA%E6%BB%91%E8%BD%AE%E9%87%8D%E5%A4%9A%E5%B0%91%E7%89%9B)
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