問題詳情
43. 一質量為 m 的物體，由傾角為θ的斜面以無摩擦方式下滑。此物體下滑後壓縮一理想彈簧（彈力係數 k），且壓縮量為x，則右圖中的 d 為何? 
參考答案
答案：C
難度：適中0.666667
統計：A(1),B(0),C(2),D(0),E(0)
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