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電梯
Cantinho do Vídeo
上帝視角解電梯落體:一堆正負號,最後 h=½(3g)t² #高二物理 #相對運動
2 weeks ago
Cantinho do Vídeo
電梯看物體:位移 −h、初速 0、加速度 −3g,就是初速 0 的落體 #高二物理 #相對運動
2 weeks ago
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