物哩,平面運動的計算。 - 運動
By Selena
at 2006-09-03T00:00
at 2006-09-03T00:00
Table of Contents
某質點於平面上運動,其位置向量與時間的關係為r向量(t)=pti+qt2j,p>0,q>0,且皆為定值,則於某時刻t時質點之加速度方向與速度方向之夾角為θ,則tanθ=?(i上標三角,j也是上標三角)什麼是"運動的獨立性"?
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運動
All Comments
By Harry
at 2006-09-04T00:39
at 2006-09-04T00:39
By Edward Lewis
at 2006-09-06T18:48
at 2006-09-06T18:48
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