摘要
在大学物理教材中狭义相对论的洛伦兹变换公式的基础上,首先推导出运动的质点在不同惯性系中加速度的变换式,并发现加速度的相对论效应与惯性系间相对运动速率和质点运动的速率相关.然后在用动量描述的牛顿第二定律表达式的基础上,得到用质量和加速度来描述的牛顿第二定律的狭义相对论形式,该形式在不同的惯性系里面有等价性.同时,论证了牛顿第一定律的等价性.
In this paper,based on the Lorentz transformation of special relativity in college physics,we have derived the transformation formulas of the particle’s acceleration under different inertial systems,firstly.We have discussed the relationship between the relativity effect of acceleration and the speed of particle,and the relative speed of the inertial system.Then,we have obtained the Newton’s second law in special relativity using the massive and acceleration.The new form has equivalent in different inertial systems.Finally,the Newton’s first law has been proved the property of equivalent.
作者
吴晓
Wu Xiao(Department of Science and technology,Zhejiang International Studies University,Hangzhou,Zhejiang 310012)
出处
《物理通报》
2018年第A02期125-127,共3页
Physics Bulletin
关键词
狭义相对论
洛伦兹变换
加速度
牛顿第二定律
special relativity
Lorentz transformation
acceleration
Newton’s second law
