[開竅]助教我會了啦!!!!!!!!!!!
助教欸助教 我會證明了!!!!!!!!!!
我知道為什麼我會卡住那麼久了!!!!!!!!!!!!
因為我把彈簧的串並聯跟電池的串並聯搞混了!!!!!!!!!!!!
害我一直想說 為什麼觀念跟最後結果相反!!!!!!!!!!!
串聯:F/k1+F/k2=F/K(每段彈簧伸長量加總=總伸長量) 同除F可得1/k1+1/k2=1/K
並聯:(k1+k2)X=KX(每段彈簧伸長量=總伸長量) 同除X可得k1+k2=K
耶斯耶斯 終於想通了!!!!!!!!!!!!!!!!!
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◆ From: 134.208.44.241
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