轻绳一端固定在距地面高为d的地方,另一端固定一小球,质量为m(小球半径忽略),绳长L,绳子所能承受的最多拉力为T=(11mg)/3.小球做圆周运动,当在运动至最低点时轻绳断裂,要使球抛出的水平
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![轻绳一端固定在距地面高为d的地方,另一端固定一小球,质量为m(小球半径忽略),绳长L,绳子所能承受的最多拉力为T=(11mg)/3.小球做圆周运动,当在运动至最低点时轻绳断裂,要使球抛出的水平](/uploads/image/z/4812619-67-9.jpg?t=%E8%BD%BB%E7%BB%B3%E4%B8%80%E7%AB%AF%E5%9B%BA%E5%AE%9A%E5%9C%A8%E8%B7%9D%E5%9C%B0%E9%9D%A2%E9%AB%98%E4%B8%BAd%E7%9A%84%E5%9C%B0%E6%96%B9%2C%E5%8F%A6%E4%B8%80%E7%AB%AF%E5%9B%BA%E5%AE%9A%E4%B8%80%E5%B0%8F%E7%90%83%2C%E8%B4%A8%E9%87%8F%E4%B8%BAm%EF%BC%88%E5%B0%8F%E7%90%83%E5%8D%8A%E5%BE%84%E5%BF%BD%E7%95%A5%EF%BC%89%2C%E7%BB%B3%E9%95%BFL%2C%E7%BB%B3%E5%AD%90%E6%89%80%E8%83%BD%E6%89%BF%E5%8F%97%E7%9A%84%E6%9C%80%E5%A4%9A%E6%8B%89%E5%8A%9B%E4%B8%BAT%3D%2811mg%29%2F3.%E5%B0%8F%E7%90%83%E5%81%9A%E5%9C%86%E5%91%A8%E8%BF%90%E5%8A%A8%2C%E5%BD%93%E5%9C%A8%E8%BF%90%E5%8A%A8%E8%87%B3%E6%9C%80%E4%BD%8E%E7%82%B9%E6%97%B6%E8%BD%BB%E7%BB%B3%E6%96%AD%E8%A3%82%2C%E8%A6%81%E4%BD%BF%E7%90%83%E6%8A%9B%E5%87%BA%E7%9A%84%E6%B0%B4%E5%B9%B3)
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