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範例:動能與等速率圓周運動

一質量m的物體,以半徑R,作等速率圓周運動,向心力f,則(A)動能恆為fR/2  (B)動量大小恆為 (C)旋轉1/3週,動能變化 (D)同(C),動量變化大小 (E)物體恆受衝量作用,但沒有獲得功。

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Posted in 動能與功能定理.

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By admin – 2009 年 03 月 25 日

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