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Search options not deleted user 177050

This tag is for questions relating to collision which is the interaction between two or more bodies that results in physical contact and an exchange of momentum between the bodies involved. When it happens, kinetic energy is often exchanged between the molecules’ translational motion and their internal degrees of freedom.

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Relativistic mass or rest mass

The energy of the system won't change. The energy of the particles alone might, so their relativistic mass might too. As was pointed out in a reply the particles might have emitted radiation that woul …
K. Kirilov's user avatar