"Collision" can refer to different concepts depending on the context in which it is used. Here are a few common interpretations: 1. **Physics**: In physics, a collision refers to an event where two or more bodies exert forces on each other for a relatively short time. There are different types of collisions, such as elastic collisions (where kinetic energy is conserved) and inelastic collisions (where kinetic energy is not conserved).
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A collision is an interaction between approaching bodies or particles that changes their motion. Momentum conservation and conservation of energy constrain the outcomes; inelastic collisions can transfer mechanical energy into internal degrees of freedom.