问题的提出每天当我从校门口斑马线等候人行绿灯过马路时,看到川流不息的车辆时,总是情不自禁的数起过往车辆来,不过每次数着数着人行绿灯就亮了,得赶紧过马路,没一次数清楚过绿灯亮时到底能过多少辆车。后来我就想,能不能利用所学物理知识测算出来呢。比如一次60s的绿灯到底能过多少辆车呢,于是带着这个问题我进行了学习研究。 Problems raised Every day when I cross the green light from the zebra crossing waiting line at the gate of the school, I can not help but count on the passing vehicles when I see a steady flow of vehicles. However, , Did not know the number of vehicles in the end when the green light was on. Later, I thought, can I use the knowledge of physics learned it. Such as a green light in the end 60s how many cars it can, so with this problem I conducted a study.