| 自然坐标系的意义 |
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| 引用本文： | 史天治.自然坐标系的意义[J].贵阳金筑大学学报,2007(4). |
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| 作者姓名： | 史天治 |
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| 作者单位： | 淮阴师范学院物理系 江苏淮安223001 |
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| 摘 要： | 解决了关于自然坐标系的混乱状况。弧坐标没有意义。s根本不是弧坐标,而是路程。一切质点在无穷小时间dt内均绕曲率中心作圆周运动。牛顿第二定律在绝对空间任何一个方向上都是正确的。切线和法线都无方向,切线轴的正向为速度的方向。自然坐标系的目的不是确定其他质点在空间的位置,而是为了应用牛顿第二定律以解决实际问题。
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| 关 键 词： | 自然坐标系 内禀方程 向心加速度 路程 微分 |
On the Significance of Natural Coordinate System |
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| SHI Tian-zhi.On the Significance of Natural Coordinate System[J].Journal of Jinzhu University of Guiyang,2007(4). |
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| Authors: | SHI Tian-zhi |
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| Abstract: | The article solves the confused problem of natural coordinate system,pointing out that arc coordinates are meaningless;s is distance instead of arc coordinate;all particles move around the curvature centre within the minimal time dt.Newton's second law is right in any direction of the absolute space.Both the tangent line and the normal line are directionless,the forward direction of the tangent line is the direction of the speed.The purpose of the natural coordinate system is not to determine the special location of other particles but to solve the problem using Newton's second law. |
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| Keywords: | natural coordinate system intrinsic equation centripetal acceleration distance differential |
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