物理牛顿定律的应用质量为60kg的物体以4m/s的速度竖直匀速下降 若向上的力突然变为630N 并持续2s 则这2秒内物体下落的高度是多少?
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![物理牛顿定律的应用质量为60kg的物体以4m/s的速度竖直匀速下降 若向上的力突然变为630N 并持续2s 则这2秒内物体下落的高度是多少?](/uploads/image/z/3826779-51-9.jpg?t=%E7%89%A9%E7%90%86%E7%89%9B%E9%A1%BF%E5%AE%9A%E5%BE%8B%E7%9A%84%E5%BA%94%E7%94%A8%E8%B4%A8%E9%87%8F%E4%B8%BA60kg%E7%9A%84%E7%89%A9%E4%BD%93%E4%BB%A54m%2Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E7%AB%96%E7%9B%B4%E5%8C%80%E9%80%9F%E4%B8%8B%E9%99%8D+%E8%8B%A5%E5%90%91%E4%B8%8A%E7%9A%84%E5%8A%9B%E7%AA%81%E7%84%B6%E5%8F%98%E4%B8%BA630N+%E5%B9%B6%E6%8C%81%E7%BB%AD2s+%E5%88%99%E8%BF%992%E7%A7%92%E5%86%85%E7%89%A9%E4%BD%93%E4%B8%8B%E8%90%BD%E7%9A%84%E9%AB%98%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F)
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