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6805a(68日大)設有兩塊密度均勻的磁鐵置於無摩擦之桌面上

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Uploaded by on Jun 19, 2008

設有兩塊密度均勻的磁鐵置於無摩擦之桌面上(如圖),假定其質量分別為m及2m,則當二磁鐵相吸引碰在一起時,其碰撞點離開O點的距離為?

動量:
一般而言,一個物體的動量指的是這個物體在它運動方向上保持運動的趨勢。

動量守恆定律:
如果物體系受到的合外力為零,則系統內各物體動量的向量和保持不變,系統質心維持原本的運動狀態。

Momentum:
In classical mechanics, momentum is the product of the mass and velocity of an object .

The law of conservation of linear momentum :
This is a fundamental law of nature, and it states that if no external force acts on a closed system of objects, the momentum of the closed system remains constant.




費因曼科技有限公司 Feynman Tech. CO.
www.e-physics.net
邱老師的FaceBook:chioubw@ms35.hinet.net
邱博文 Chiou, Bo-Wen

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