FRICTION 一問

用戶117319

2007-10-26 7:43 am

維基話
Static friction occurs when the two objects are not moving relative to each other

Kinetic (or dynamic) friction occurs when two objects are moving relative to each other and rub together

其實佢地兩種ge分別係????

回答 (1)

晴

2007-10-26 8:00 am

✔ 最佳答案

Static friction 係推件野之前所用ｇｅ力．．
因為物件同物件之間有ｅｌｅｃｔｒｏｎ，
而ｅｌｅｃｔｒｏｎ同ｅｌｅｃｔｒｏｎ之間有ｂｏｎｄ．．
如果要物件行的話就需要力去ｂｒｅａｋ左佢地之間ｅｌｅｃｔｒｏｎ　ｇｅ　ｂｏｎｄ．．咁樣果件物件先可以行得郁．．．
都可以話佢係ｂｒｅａｋ　ｅｌｅｃｔｒｏｎ所用ｇｅ力
呢個力也叫做Static friction ．．．
而Kinetic friction 係物件行緊時候所用ｇｅ力．．

參考: 自己＾＾

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