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足球比赛是很多人喜欢的运动之一,实际上,这项运动包含了很多物理知识。现在我们透过足球场上常见的几种现象来探究一下。1.球越滚越慢。在球场上踢出的球越滚越慢,最终停下来。这是因为踢出的足球由于惯性要保持原来的运动状态,沿原来的运动方向继续滚动;而在运动方向上只受到了滚动摩擦力的作用,这个阻力改变了足球的运动状态,阻碍足球滚动,使球越滚越慢,所以球最终停止运动。
Football is one of many favorite sports, in fact, the sport contains a lot of physical knowledge. Now we explore the phenomenon of several common football stadium. The ball is rolling more slowly The ball kicked out on the pitch rolled more slowly and eventually stopped. This is because the kicked out of the football due to inertia to maintain the original state of motion, along the original direction of the movement to continue rolling; and in the direction of the movement only by rolling friction, the resistance changes the state of football, hinder football rolling , Make the ball rolling more slowly, so the ball eventually stopped moving.