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範例:v-t圖之應用與追趕問題[84日大]

二條平直且互相平行的鐵路上,各有一列火車:甲火車長300公尺,以等速40公尺/秒前進;乙火車長100公尺,當甲火車尾端通過乙火車頭時乙火車由靜止開始啟動,且以2公尺/秒2之加速度增至最大速度60公尺/秒後維持等速前進。總共經過多少秒後乙火車尾端超過甲火車頭。【84日大】

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Posted in 加速度, 歷屆物理考題.

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By admin – 2010 年 08 月 06 日

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