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範例:彈力與鉛直面振動[100指考]

一個物體掛在彈簧下,如圖2所示。當物體沿鉛直方向振動時,其質心位置的最高點為甲,最低點為戊,且物體的質心在甲點時,彈簧的長度大於其自然長度。在振動過程中,彈簧作用在此物體上的力在哪一點最小?(A) 甲 (B) 乙 (C)丙 (D) 丁 (E) 戊 [100指考]

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Posted in 歷屆物理考題, 牛頓運動定律, 牛頓運動定律的應用-簡諧運動.

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