國三理化第1章直線運動 - 運動
By Irma
at 2012-07-22T00:00
at 2012-07-22T00:00
Table of Contents
範圍:1-3速度的變化與加速度、1-4等加速度運動()1.某質點沿直線作等加速度運動,速度在6秒內由30m/s增為48m/s,則上述時間內質點運動了多少公尺?(A)180(B)234(C)240(D)268()2.某物體以50m/s的初速度進行,欲在250m內停止,試問加速度為何?(A)50m/s2(B)-50m/s2(C)5m/s2(D)-5m/s2()3.某人在六樓窗口把A物向上投擲;把B物向前拋出;把C��
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運動
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