坐标系转换中的力学量

The Mechanical Quantity in Coordinate System Transformation

选择参考系,以确定物体的运动性质,建立坐标系,以定量描述物体的运动.通过分析具体实例,结果说明,力学量的大小不会因坐标系的转换而改变.

To determine the kinetic property of object, a suitable reference frame was chose; meanwhile, a coordinate was established to mirror the movement of object. After analyzing some specific examples, the result showed that the mechanical quantity was not change by co- ordinate system transformation.