[題目] 靜力學
[領域] (題目相關領域)
靜力學
[來源] (課本習題、考古題、參考書...)
Hibbeler 13 Edition Chapter 03
[題目]
The single elastic cord ABC is used to supprot the 40-lb load.
Determine the position x and the tension in the cord that is
required for equilibrium. The cord passes through the smooth
ring at B and has an unstretched length of 6 ft and stiffness
of k = 50 lb/ft
Figure: http://ppt.cc/z4AW
[瓶頸] (寫寫自己的想法，方便大家為你解答)
如果今天繩子為非彈性繩, 應當是利用繩長關係和相似三角形來求解,
但這題為彈性繩, 兩段的繩張力應視伸長量決定, 所以卡關了Orz
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