我叫重力,用符号“G”表示,人们习惯叫我重量,是“力”家庭中的第一员大将,是由于地球吸引而使物体受到的力.不管什么物体,只要在地球上或在地球附近,即使不受其它任何力的作用,也一定要受到我的作用,因此,在同学们分析物体受力的时候,要首先画出我——物体所受的重力.不客气地说,人们所以 My name is Gravity, and I use the symbol “G” to indicate that people are used to calling me the weight of the first member of the “force” family. It is the force that the object is subjected to because of the attraction of the Earth. No matter what the object is, on Earth or in Near the earth, even if it is not affected by any other force, it must be affected by me. Therefore, when the students analyze the force of the object, they must first draw the weight of me—the weight of the object. I’ll say it politely. People so