“力”是生活中常用的一个词，用在不同的地方有不同的含义．比如学好物理要提高“观察能力”、“分析能力”，上课时集中“注意力”；还有“说服力”、“战斗力”、“人力”、“物力”等等．在物理学中，力是一个重要的物理概念，有确切的含义．力是物体对物体的作用．人推车 “Force” is a commonly used word in life and has different meanings in different places. For example, if you want to study physics, you must improve your “observing ability” and “analysis ability” and focus on “attention” in class; “persuasiveness”, “combat power”, “human power”, “material power”, etc. In physics, force is an important physical concept and has an exact meaning. Force is the effect of an object on an object. Person Cart