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本文主要探究了描述速度大小变化快慢的物理量、描述速度方向变化快慢的物理量、描述速度变化快慢的物理量、描述矢径方向变化快慢的物理量之间的联系和区别,并且针对一种常见而又典型的错误说法“向心加速度是描述线速度方向改变快慢的物理量”予以详细阐述,不当之处,敬请指正.
This paper mainly explores the physical quantities describing the speed of the speed changes, the physical quantities describing the speed of the speed changes, the physical quantities describing the speed of the changes of speed, the relations and differences between the physical quantities describing the speed of the radial changes, The erroneous statement “centripetal acceleration is the physical quantity that describes the speed of change in linear velocity ” to be elaborated, the wrong place, please correct me.