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作者 Ariuse 在 PTT [ teaching ] 看板的留言(推文), 共4則

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Re: [請益] 理化問題請幫忙解答~

[ teaching ]4 留言, 推噓總分: +1

作者: lighthen - 發表於 2010/03/03 20:05(16年前)

1^F推Ariuse:可這樣說: 題目的解應是一個最小值也就是人至少要在03/03 23:34

2^F→Ariuse:速度相同時追到車子(不然接下來車子越來越快永遠不可能03/03 23:35

3^F→Ariuse:追到)所以當t秒時公車速度也恰好是V 可得t=V03/03 23:37

4^F→Ariuse:如此可解得0.5t^2+32=t^2 所以 V=803/03 23:37

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