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已知一物體之x-t關係為x=3t2-2t+5 (x與t之單位為米與秒),則(1)初速若干? (2)運動2秒之速度及加速度為若干? (3)運動2秒內的平均加速度為多少?
[詳解]
Posted in 位移與速度.
Tagged with 平均加速度, 微分, 瞬時加速度.
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By admin – 2010 年 08 月 03 日
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