如图所示,一物体在O点以初速度V开始做曲线运动,已知物体只受到沿X轴方向的恒力作用,则物体速度大小A先减小后增大B先增大后减小C不断增大D不断减小
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![如图所示,一物体在O点以初速度V开始做曲线运动,已知物体只受到沿X轴方向的恒力作用,则物体速度大小A先减小后增大B先增大后减小C不断增大D不断减小](/uploads/image/z/13909241-65-1.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E4%B8%80%E7%89%A9%E4%BD%93%E5%9C%A8O%E7%82%B9%E4%BB%A5%E5%88%9D%E9%80%9F%E5%BA%A6V%E5%BC%80%E5%A7%8B%E5%81%9A%E6%9B%B2%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%B7%B2%E7%9F%A5%E7%89%A9%E4%BD%93%E5%8F%AA%E5%8F%97%E5%88%B0%E6%B2%BFX%E8%BD%B4%E6%96%B9%E5%90%91%E7%9A%84%E6%81%92%E5%8A%9B%E4%BD%9C%E7%94%A8%2C%E5%88%99%E7%89%A9%E4%BD%93%E9%80%9F%E5%BA%A6%E5%A4%A7%E5%B0%8FA%E5%85%88%E5%87%8F%E5%B0%8F%E5%90%8E%E5%A2%9E%E5%A4%A7B%E5%85%88%E5%A2%9E%E5%A4%A7%E5%90%8E%E5%87%8F%E5%B0%8FC%E4%B8%8D%E6%96%AD%E5%A2%9E%E5%A4%A7D%E4%B8%8D%E6%96%AD%E5%87%8F%E5%B0%8F)
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