阿基米德-浮力問題 - 考試

By Charlotte
at 2014-07-16T13:32
at 2014-07-16T13:32
Table of Contents
題目:一浮桿10m,直徑0.2m,質量為200kg,其一端繫於湖底5m長之繩索上,
如圖所示,設湖的深度為11m,則浮桿平衡時與水平方向之夾角θ為何?
https://farm4.staticflickr.com/3874/14480304218_3ccc581f7e_z.jpg

想法:不知道哪裡觀念有問題,就是算不出來。
答案:θ=48.75度
麻煩版上前輩們不吝嗇指導,謝謝!
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