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所谓正交分解,就是向互相垂直的两个方向上,根据平行四边形法则进行矢量的分解。为什么要取互相垂直的两个方向?因为这样两个分矢量彼此独立,互不影响。正交分解的一般方法本文不再赘述,下面就如何巧用正交分解突破难点进行阐述。一、力的正交分解(曲线运动)因为做曲线运动的物体速度方向一定改变,而改变速度方向的力,即向心力一定是指向圆心的,亦即沿曲线上该点的半径方向,所以对曲线运动,我们通
The so-called orthogonal decomposition, is to the two directions perpendicular to each other, according to the parallelogram method of vector decomposition. Why two directions perpendicular to each other? Because these two sub-vector independent of each other, without affecting each other. Orthogonal decomposition of the general method of this article will not go into details, the following on how to use orthogonal decomposition difficult to break through. First, the force of orthogonal decomposition (curve movement) Because the speed of the object moving in the direction of the curve must change, and change the speed of the force, that is, the centripetal force must point to the center of the circle, that is, along the curve of the point on the radial direction, so Curved movement, we pass