高中物理有很多极限问题,有些极限是无限的趋近某一值,而不能达到极限的,但很多题目在处理这些极限问题的时候忽视了这一点.本文就高中物理中常见的几个极限问题进行探讨.1汽车以恒定功率起动能达到最大速度吗?在“机械能”一章里常常会遇到类似这样的题目:一辆质量为5t的汽车以额定功率P=6×10~4W从静 There are many extreme problems in high school physics, some of which are infinitely close to a certain value, but can not reach the limit, but many subjects neglect this point when dealing with these extreme problems.In this paper, several common limit problems in high school physics 1. Can a car start at constant power to achieve maximum speed? A common problem in the chapter entitled “Mechanical Energy” is that a car with a mass of 5t has a rated power of P = 6 × 10 ~ 4W From the static