摘要
物理量按方向性可分为矢量和标量,本文通过实例运用平行四边形法则和正交分解法求矢量的大小和方向。进一步明确矢量方向性的物理意义。
The physical quantity may divide into the vector sum scalar according to the directivity,this article asks the vector through the example utilization parallelogram principle and the orthogonal resolution the size and the direction. Is further clear about the vector directive physics significance.
出处
《改革与开放》
2009年第7X期140-140,共1页
Reform & Openning
关键词
矢量
标量
角度
方向
平行四边形法则
正交分解法
Vector,scalar,angle,direction,parallelogram principle,orthogonal resolution
