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~~~


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