质量为m的重物放在地面上,该地重力加速度为g,现用一根细绳向上提重物(上海高二预赛第七届)质量为m的重物放在地面上,该地重力加速度为g,现用一根细绳向上提重物,使绳子拉力从开始逐
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![质量为m的重物放在地面上,该地重力加速度为g,现用一根细绳向上提重物(上海高二预赛第七届)质量为m的重物放在地面上,该地重力加速度为g,现用一根细绳向上提重物,使绳子拉力从开始逐](/uploads/image/z/7889367-39-7.jpg?t=%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E9%87%8D%E7%89%A9%E6%94%BE%E5%9C%A8%E5%9C%B0%E9%9D%A2%E4%B8%8A%2C%E8%AF%A5%E5%9C%B0%E9%87%8D%E5%8A%9B%E5%8A%A0%E9%80%9F%E5%BA%A6%E4%B8%BAg%2C%E7%8E%B0%E7%94%A8%E4%B8%80%E6%A0%B9%E7%BB%86%E7%BB%B3%E5%90%91%E4%B8%8A%E6%8F%90%E9%87%8D%E7%89%A9%EF%BC%88%E4%B8%8A%E6%B5%B7%E9%AB%98%E4%BA%8C%E9%A2%84%E8%B5%9B%E7%AC%AC%E4%B8%83%E5%B1%8A%EF%BC%89%E8%B4%A8%E9%87%8F%E4%B8%BAm%E7%9A%84%E9%87%8D%E7%89%A9%E6%94%BE%E5%9C%A8%E5%9C%B0%E9%9D%A2%E4%B8%8A%2C%E8%AF%A5%E5%9C%B0%E9%87%8D%E5%8A%9B%E5%8A%A0%E9%80%9F%E5%BA%A6%E4%B8%BAg%2C%E7%8E%B0%E7%94%A8%E4%B8%80%E6%A0%B9%E7%BB%86%E7%BB%B3%E5%90%91%E4%B8%8A%E6%8F%90%E9%87%8D%E7%89%A9%2C%E4%BD%BF%E7%BB%B3%E5%AD%90%E6%8B%89%E5%8A%9B%E4%BB%8E%E5%BC%80%E5%A7%8B%E9%80%90)
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