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在力平衡问题中 ,当物体受力情况发生变化时 ,物体仍受力平衡 ,我们称之为动态力平衡 .解决动态力平衡问题方法很多 ,而“动态作图法”实用、简单、直观 .1 “动态作图法”介绍作出物体在各个不同位置时的受力图以及不变力与各力间的关系 (根据物体平衡条件 ) ,然后将在各个不
In the problem of force balance, when the force condition of an object changes, the object is still balanced by force. We call it dynamic force balance. There are many ways to solve the problem of dynamic force balance, and the “dynamic mapping method” is practical, simple, and intuitive. 1 The “Dynamic Drawing Method” introduces the force diagram and the relationship between the constant force and each force (according to the object balance condition) when the object is in different positions, and then it will