⚙️ap physics c: mechanics review

Law of Conservation of Momentum

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The law of conservation of momentum states that in any isolated system, the total momentum before an event (such as a collision) is equal to the total momentum after that event, provided no external forces act on it.

"Law of Conservation of Momentum" also found in: