等加速度運動的〝同底斜面〞? - 運動
By Edwina
at 2006-06-30T00:00
at 2006-06-30T00:00
Table of Contents
http://img.photobucket.com/albums/v241/kmy_style/f...如上網址的圖,使鋼珠自A、B二光滑斜面頂點滑到斜面底所需時間相同,則A、B自斜面頂滑到底時,末速之比為何?此題目我以為是初速為0的等加速度運動,所以用〝末速=初速+at〞初速為0,t又相同,所以末速比和加速度a成正比。可是我又不知道全部的角度,所��
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運動
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By Ingrid
at 2006-06-30T04:01
at 2006-06-30T04:01
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