Glossary · term

Momentum

Mechanics

Domain
Mechanics

Definition

Mass times velocity — the quantity a collision conserves whatever else it destroys. Newton stated his second law as its rate of change, which is the form that survives when the mass is changing too.

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From the Glossary database in Notion, last edited 2026-08-17. This page is the row, rendered by the build; nothing on it is written by hand.