论文部分内容阅读
在物理学习中,经常遇到动态平衡问题,物理中的动态平衡问题是指通过控制某些物理量,使物体的状态发生缓慢变化,而在这个过程中物体又处于一系列的平衡状态。这类问题的特征是:“缓慢”移动,“缓慢”是指物体的速度极小,计算时可以认为速度始终为零,也就是说没有加速度。因此,习题中出现“缓慢”移动无论是直线运动还是曲线运动都可以作为动态平衡问题处理。共点力作用下的动态平衡问题,从图形上能直观地观察出某些力的方向发生变化,从而隐含着相关的力的大小会随之改变,分析问题时要抓住题目
In physics study, we often encounter the problem of dynamic balance. The problem of dynamic balance in physics refers to the slow change of the state of an object by controlling some physical quantities, and in this process, the object is in a series of equilibrium. The characteristics of such problems are: “slow ” moving, “slow ” means the speed of the object is very small, the calculation can be considered that the speed is always zero, that is to say there is no acceleration. Therefore, the problem of “slow” movement in exercises can be dealt with as a problem of dynamic balance, either linear or curvilinear. A total of force under the dynamic balance of the problem, from the graphics can be intuitively observed some changes in the direction of force, which implies the size of the associated force will change, analyze the problem to seize the problem