1.放置在水平面上的物体质量为m = 2.0 kg,受到沿水平方向的恒定拉力作用,拉力对物体作用了6.0 s后撤去,物体在整个运动过程中受到的外力的合力F合的变化情况如图所示.则根据题中所给条件和
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![1.放置在水平面上的物体质量为m = 2.0 kg,受到沿水平方向的恒定拉力作用,拉力对物体作用了6.0 s后撤去,物体在整个运动过程中受到的外力的合力F合的变化情况如图所示.则根据题中所给条件和](/uploads/image/z/13782051-27-1.jpg?t=1.%E6%94%BE%E7%BD%AE%E5%9C%A8%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8A%E7%9A%84%E7%89%A9%E4%BD%93%E8%B4%A8%E9%87%8F%E4%B8%BAm+%3D+2.0+kg%2C%E5%8F%97%E5%88%B0%E6%B2%BF%E6%B0%B4%E5%B9%B3%E6%96%B9%E5%90%91%E7%9A%84%E6%81%92%E5%AE%9A%E6%8B%89%E5%8A%9B%E4%BD%9C%E7%94%A8%2C%E6%8B%89%E5%8A%9B%E5%AF%B9%E7%89%A9%E4%BD%93%E4%BD%9C%E7%94%A8%E4%BA%866.0+s%E5%90%8E%E6%92%A4%E5%8E%BB%2C%E7%89%A9%E4%BD%93%E5%9C%A8%E6%95%B4%E4%B8%AA%E8%BF%90%E5%8A%A8%E8%BF%87%E7%A8%8B%E4%B8%AD%E5%8F%97%E5%88%B0%E7%9A%84%E5%A4%96%E5%8A%9B%E7%9A%84%E5%90%88%E5%8A%9BF%E5%90%88%E7%9A%84%E5%8F%98%E5%8C%96%E6%83%85%E5%86%B5%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA.%E5%88%99%E6%A0%B9%E6%8D%AE%E9%A2%98%E4%B8%AD%E6%89%80%E7%BB%99%E6%9D%A1%E4%BB%B6%E5%92%8C)
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