Internal force is responsible for the change in velocity of an object.

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Gravitation topics include: Forces of nature, inertia, restitution coefficient, gravitational and gravity.

The coefficient of restitution (COR) is a unitless quantity that indicates the elasticity of a collision. It is the ratio of the final velocity to the initial velocity between two objects after their collision. The COR is denoted as "e" and its values range between 0 and 1.


Internal force is responsible for the change in velocity of an object.