在所有的运动学概念中,速度是最为基础和重要的概念了.但是如何理解平均速度的概念?平均速度和瞬时速度有何区别?怎样测量和计算平均速度?……本文将对上述问题一一作出解答.希望能对同学们的学习有所帮助.自然界中物体的运动复杂多变,匀速直线运动作为一种运动形式其实并不多见,甚至可以说没有.更普遍的运动应当是变速运动,那么我们怎样描述做变速运动的物体呢?这就涉及对速度更高层次的理 Speed ​​is the most basic and important concept in all kinematic concepts, but how do you understand the notion of average speed? What is the difference between average speed and instantaneous speed? How to measure and calculate the average speed? A to answer.Hope to help students learn.Natural objects in the complex and volatile movement, uniform linear motion as a form of exercise is actually rare, you can even say no more common motion should be speed Exercise, then how do we describe the objects that are moving at variable speeds? This involves dealing with a higher level of reasoning