共点力平衡问题是高中物理的一个重点问题,也是难点。很多学生在刚碰到平衡问题时都无从下手,不知道解决这类问题的方法。下面主要分析一下静态平衡的解决方法。物体保持静止或匀速直线运动的状态称为平衡状态。物体处于平衡状态的条件是F合=0。平衡状态可以分为静态平衡和动态平衡。静态平衡指物体处于平衡态,并且所受的外力大小、方向均不发生变化。●二力平衡物体在两个力作用下处于平衡状态,这两个力必然大小相等、方向相反、作用在同一条直线上。●三力平衡 A total of balance of power problems in high school physics is a key issue, but also difficult. Many students find it hard to get started right away and do not know the answer to such problems. The following analysis of the static balance of the solution. Objects remain stationary or uniform linear motion of the state known as the equilibrium state. The condition for the object to be in equilibrium is F = 0. Balance can be divided into static balance and dynamic balance. Static balance refers to the object in an equilibrium state, and the external force suffered by the size, direction are not changed. ● Two-force balance The object is in equilibrium under the action of two forces. The two forces must be equal in size and opposite in direction and act on the same straight line. ● Three balance