Here is the question: http://s689.photobucket.com/albums/vv257/halolover1234/?action=view¤t=work.jpg
Find T1 and T2 . Please show steps because thats all I do not understand.
Very easy tension question
2009-05-19 3:46 am
回答 (1)
2009-05-19 4:21 am
✔ 最佳答案
Resolve T1 and T2 vertically and horizontally,For object in equilibrium:
Vertically: T1.sin(60) + T2.sin(30) = 500 ---------------- (1)
Horizontally: T1.cos(60) = T2.cos(30)
i.e. T2 = T1.cos(60)/cos(30) ------------- (2)
Substitute into (1),
T1.sin(60) + T1.cos(60).sin(30)/cos(30) = 500
solve for T1 and then find T2 from (2)
收錄日期: 2021-04-29 17:29:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090518000051KK01504