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理化B5
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5. 臺北101 大樓樓高約 500 公尺,有遊客
在頂樓參觀時,不小心掉落髮圈,若不
考慮空氣阻力:(設g= 10.0 m/5s7)
(1) 髮圈 ____ 秒後著地。 (p.37
(2) 整個運動的平均速率為 >0 nm/5。
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