短板與長板的速度? - 衝浪運動討論
By Emily
at 2007-03-07T00:28
at 2007-03-07T00:28
Table of Contents
我有個疑問 應該算是物理題吧
長板浮力大 阻力小 ? 短板吃水深 阻力大 ?
一般都認為長板"滑水的"速度會比長板快
可是在衝的時候又好像是短板比較快
那假設受力相同
6呎快 ? 還是9呎比較快 ?
如果是短板快 那其實長板不過是較省力 這樣對嗎 ?
快艇與航母之比較.....
懇請解惑
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