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一、处理平衡问题的几种方法1.合成、分解法利用力的合成与分解能解决三力平衡的问题。具体求解时有两种思路:(1)将某力沿力的两个力的反方向进行分解。将三力转化为四力,构成两对平衡力。(2)某二力进行合成,将三力转化二力,构成一对平衡力。2.正交分解法将各力分解到x轴和y轴上,运用两坐标轴上的合力等于零(∑Fx=0,∑Fy=0)的条件解题,多用于三个以上共点力作用下的物体的平衡问题。值
A few ways to deal with the issue of balance 1. Synthesis, decomposition method Synthesis and decomposition of the use of force to solve the problem of balance of the three forces. Specific solutions have two kinds of ideas: (1) a force along the force of the two forces in the opposite direction to decompose. The three forces into four, constitute two pairs of balance. (2) A synthesis of two forces, the three forces into two, constitute a pair of balance. 2. Orthogonal decomposition of the force decomposition to the x-axis and y-axis, the use of two axes on the force equal to zero (ΣFx = 0, ΣFy = 0) to solve the problem, and more for more than three points of force The balance of objects under the action. value