力學問題 - 考試
By David
at 2013-12-31T11:25
at 2013-12-31T11:25
Table of Contents
1. http://ppt.cc/aQOk
我照上面的圖判斷出重力位能是正值,外力F的位能是負值
算出來角度是-63度,但答案是+63度,差了一個負號
不知哪邊錯了?
2.
https://drive.google.com/file/d/0B17h6KsDSmw4eHdpeEE3c2ZWXzA/edit?usp=sharing
我用彈簧串聯算出變形量是2.98但詳解是5.72,不知哪邊錯了?
3. http://ppt.cc/KCmg (題目)
http://ppt.cc/CTl5 (我的解法)
這題我找出加速度瞬心,但算出來的a =17.95,答案是52.6,不知哪邊錯了?
c
謝謝
--
Tags:
考試
All Comments
By Dinah
at 2014-01-03T16:43
at 2014-01-03T16:43
By Leila
at 2014-01-05T04:25
at 2014-01-05T04:25
By Bennie
at 2014-01-09T07:58
at 2014-01-09T07:58
By Hedda
at 2014-01-13T19:27
at 2014-01-13T19:27
By Blanche
at 2014-01-18T03:55
at 2014-01-18T03:55
Related Posts
港務公司放榜
By Mason
at 2013-12-31T09:07
at 2013-12-31T09:07
憲法、英文、法緒
By Zenobia
at 2013-12-31T02:24
at 2013-12-31T02:24
律師應考資格20學分課程名稱疑問
By Kelly
at 2013-12-31T00:07
at 2013-12-31T00:07
Examination板 MJdavid v.s P5555
By John
at 2013-12-30T23:22
at 2013-12-30T23:22
律師應考資格20學分課程名稱疑問
By Lucy
at 2013-12-30T23:15
at 2013-12-30T23:15