Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Pinitial refers to the initial total momentum before a collision occurs. It takes into account both the mass and velocity of all objects involved in the system.
Related terms
Pfinal (Final Momentum): Refers to the total momentum of the system after a collision has occurred.
The principle that states that the total momentum of an isolated system remains constant before and after a collision, as long as no external forces are acting on it.