竖直上抛运动的一道题一个氢气球以4m/sˇ2的加速度由静止从地面竖直上升,10s末从气球上面掉下一重物,此重物最高可上升到距地面多高处?重物掉下后,经多长时间落回地面?(忽略空气坐立,取
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![竖直上抛运动的一道题一个氢气球以4m/sˇ2的加速度由静止从地面竖直上升,10s末从气球上面掉下一重物,此重物最高可上升到距地面多高处?重物掉下后,经多长时间落回地面?(忽略空气坐立,取](/uploads/image/z/8160821-53-1.jpg?t=%E7%AB%96%E7%9B%B4%E4%B8%8A%E6%8A%9B%E8%BF%90%E5%8A%A8%E7%9A%84%E4%B8%80%E9%81%93%E9%A2%98%E4%B8%80%E4%B8%AA%E6%B0%A2%E6%B0%94%E7%90%83%E4%BB%A54m%2Fs%CB%872%E7%9A%84%E5%8A%A0%E9%80%9F%E5%BA%A6%E7%94%B1%E9%9D%99%E6%AD%A2%E4%BB%8E%E5%9C%B0%E9%9D%A2%E7%AB%96%E7%9B%B4%E4%B8%8A%E5%8D%87%2C10s%E6%9C%AB%E4%BB%8E%E6%B0%94%E7%90%83%E4%B8%8A%E9%9D%A2%E6%8E%89%E4%B8%8B%E4%B8%80%E9%87%8D%E7%89%A9%2C%E6%AD%A4%E9%87%8D%E7%89%A9%E6%9C%80%E9%AB%98%E5%8F%AF%E4%B8%8A%E5%8D%87%E5%88%B0%E8%B7%9D%E5%9C%B0%E9%9D%A2%E5%A4%9A%E9%AB%98%E5%A4%84%3F%E9%87%8D%E7%89%A9%E6%8E%89%E4%B8%8B%E5%90%8E%2C%E7%BB%8F%E5%A4%9A%E9%95%BF%E6%97%B6%E9%97%B4%E8%90%BD%E5%9B%9E%E5%9C%B0%E9%9D%A2%3F%EF%BC%88%E5%BF%BD%E7%95%A5%E7%A9%BA%E6%B0%94%E5%9D%90%E7%AB%8B%2C%E5%8F%96)
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