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加速度的定義lim(t→0)△v/△t,即速度關於時間的導數你可以試著在圓周運動中,讓某質點轉過很小的角度,算出)△v/△t,這樣能算出加速度的數值.而加速度的方向可以這樣理凡是曲線運動,若有沿著切線方向的加速度,那麼速…
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