Skip to content
Categories:

範例:靜力平衡與樞紐力(二)[89日大]

一均勻細桿，長1公尺，重量為W，在距離其上端25公分處以一釘子將此細桿釘在鉛直牆面上，使細桿可繞此釘子無摩擦地旋轉，今施一水平力F於其上端，使細桿偏離鉛直線θ角(θ<90o)(如圖)，則在平衡時釘子作用在細桿上力之量值為(A)Wtanθ(B)W√(1+sin2θ)(C)Wsecθ(D)W/(1-sinθ) (E)Wcosθ。[89日大]

[詳解]

相關文章:

Posted in 力矩與剛體靜力平衡, 歷屆物理考題.

Tagged with , , , , .

rev="post-3418" No comments

By admin – 2010 年 09 月 21 日

0 Responses

Stay in touch with the conversation, subscribe to the RSS feed for comments on this post.

You must be logged in to post a comment.

« »
57 visitors online now
7 guests, 16 bots, 34 members
All time: 479 at 08-18-2020 08:10 pm UTC
Max visitors today: 81 at 04:51 pm UTC
This month: 145 at 11-03-2024 07:36 pm UTC
This year: 259 at 08-23-2024 08:56 pm UTC