關於牛頓運動定律的幾個疑問...!! - 運動
By Isla
at 2007-02-08T00:00
at 2007-02-08T00:00
Table of Contents
1.「物體受力且合力≠0,則物體向合力方向運動」嗯...在煞車的情況下,合力不是向後嗎?那車子往前滑行怎麼解釋?好像和慣性定律有點衝突?2.「物體受力且合力=0,物體靜止或做等速度運動」若一物體在光滑''無摩擦力''的平面上作等速度運動,是不是說這物體沒有受到任何力的作�
Tags:
運動
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By Lauren
at 2007-02-10T20:46
at 2007-02-10T20:46
By Necoo
at 2007-02-11T22:27
at 2007-02-11T22:27
By Jessica
at 2007-02-11T03:06
at 2007-02-11T03:06
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