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範例:非固定力的功能定理

在光滑水平面上，質量m的物體原以vo向東運動，受到一恆向北的力作用，此力隨著時間而變的關係為F=kt，k為常數，則最初t秒內，力對物體作功若干?

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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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