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mahnoor_manoo
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What does coefficient of retitution signify? On what factor does it depends?
The Coefficient of Restitution (COR) is a measure of the elasticity of a collision between two objects. It is defined as the ratio of the relative velocity of separation to the relative velocity of approach between the two objects.
The COR is calculated by dividing the relative velocity of separation by the relative velocity of approach. This is typically represented by the equation COR = vf/vi, where vf is the final velocity after the collision and vi is the initial velocity before the collision.
The COR can have a value between 0 and 1, with 0 representing a completely inelastic collision (where the objects stick together after impact) and 1 representing a perfectly elastic collision (where there is no loss of kinetic energy and the objects bounce off each other with the same velocity).
The COR determines the amount of kinetic energy that is conserved during a collision. A higher COR means a greater preservation of kinetic energy and a more elastic collision. This can result in a greater rebound or bounce of the objects involved.
The COR can be influenced by various factors such as the material properties of the objects, the surface they are colliding on, and the angle and velocity of the impact. In general, objects made of more elastic materials and colliding on smoother surfaces tend to have a higher COR.