http://i307.photobucket.com/albums/nn300/mummymummymummy/mech.jpg
how to do this question?
statics
2008-07-28 11:11 pm
回答 (1)
2008-07-29 3:22 am
✔ 最佳答案
Firstly, consider the free body diagram of the system.Let 2a be the length of a rod.
圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn01Jul281921.jpg?t=1217244133
圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn02Jul281921.jpg?t=1217244144
參考: Myself~~~
收錄日期: 2021-04-21 15:59:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080728000051KK01513