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The coefficient of restitution (COR) is a measure of the "restitution" of a collision between two objects: how much of the kinetic energy remains for the objects to rebound from one another vs. how much is lost as heat, or work done deforming the objects. The coefficient, e is defined as the ratio of relative speeds after and before an impact, taken along the line of the impact: Alternatively, this may be expressed as: The mathematics were developed by Sir Isaac Newton〔(【引用サイトリンク】title='A' level Revision:Newton's Law of Restitution )〕 in 1687. It is also known as Newton's experimental law, though it is really just another way to think about conservation of energy and momentum. == Further details == Line of impact- Its the line along which 'e' is defined or in absence of tangential reaction force between colliding surfaces force of impact is shared along this line between bodies. During physical contact between bodies during impact its line along common normal to pair of surfaces in contact of colliding bodies. hence 'e' is defined as 1-D parameter which is unit-less. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「coefficient of restitution」の詳細全文を読む スポンサード リンク
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