(國中理化)力與運動問題討論 - 運動
By Ingrid
at 2011-02-02T00:00
at 2011-02-02T00:00
Table of Contents
(1)行駛中的車輛若追撞前車,車子速度會驟減=>是慣性嗎?如果是.可以解釋為什麼追撞前車.車速會驟減嗎??(2)物體若不受外力作用,運動狀態可能是靜止或等速度.*為什麼不受外力物體還能等速度?如果會動不是應該有一力使它前進嗎?舉例?(3)下列敘述對沿直線運動的質點而言.何者正確?A加速度為0速度不一�
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運動
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