在学习物理的过程中,很多问题虽然物理背景千变万化,但是却遵循着相同的规律,有着共同的解,考查的是同一个问题,我们把这类问题称之为“形异质同”问题.下面举几例来具体说明:例1一根长度为L的光滑木板倾斜放置(倾角可调),其下端与一水平光滑木板连接,水平木板距地面的高度为h,一个小 In the course of studying physics, although many problems are ever-changing in their physical backgrounds, they follow the same laws, have common solutions and examine the same problem. We call these kinds of problems “heterogeneous” The following is a few examples to illustrate: Example 1 A length of L smooth wooden slanting (tilt angle adjustable), the lower end of the connection with a smooth horizontal wooden board, horizontal wooden board from the ground height h, a small