![](https://i.imgur.com/Srbz4YT.jpg)
[討論] 機械原理 圓柱摩擦輪求半徑
![](https://i.imgur.com/Srbz4YT.jpg)
請問這種題目,
他沒有告訴你速比是用半徑還是直徑下,要求出半徑
本題答案是直接用半徑去換算
但是如果用直徑下去算答案會多一倍
#還是說,當題目沒有告訴妳是以半徑還是直徑,卻要你求出半徑時,就以半徑直徑做換
算?
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※ 編輯: zx80376 (180.204.160.90), 05/25/2017 10:52:32
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