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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Central force ： ウィキペディア英語版 Central force In classical mechanics, a central force on an object is a force whose magnitude only depends on the distance ''r'' of the object from the origin and is directed along the line joining them: 〔 〕 :$\backslash vec\; =\; \backslash mathbf(\backslash mathbf)\; =\; F(\; ||\backslash mathbf||\; )\; \backslash hat\; \}$ is the force, F is a vector valued force function, ''F'' is a scalar valued force function, r is the position vector, ||r|| is its length, and $\backslash scriptstyle\; \backslash hat\{\backslash mathbf\{r\}\}$ = r/||r|| is the corresponding unit vector. Equivalently, a force field is central if and only if it is spherically symmetric. ==Properties== A central force is a conservative field, that is, it can always be expressed as the negative ウィキペディア（Wikipedia）』 ■ウィキペディアで「Central force」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.