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平均加速度僅反映一段時間內質點速度變化情况,當這段時間取值越短就越接近該位置的實際加速度,當把時間取極小值時,平均加速度就是暫態加速度. 在紙帶上,暫態速度=選取點兩側點間的平均速度. a=(v-v初)/t 平均加速度a=(Vt-Vo)/t 如果有疑問繼續追問
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