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摩擦力是指相互接触的两个物体间有相对运动趋势或已作相对运动时,在两物体的接触面上产生一个阻碍物体相对运动的力。对于这个概念,同学们在学习过程中应注意理解以下几个方面的问题。
Friction refers to a force that hinders the relative movement of an object when the two objects in contact with each other have a relative movement tendency or have made relative movement. For this concept, students should pay attention to understanding the following issues in the learning process.