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範例:彈力作功與F-x圖

壓縮彈簧x需施力F,作功W,則在彈性限度內再壓縮x,需再作功多少? (A)W(B)2W (C)3W (D)Fx(E)3Fx/270夜大】


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Posted in 功與變力作功.

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