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Perfectly Inelastic Collisions

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

When two objects collide and stick together after the collision, creating a single object with combined momentum. Energy is not conserved in perfectly inelastic collisions.

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Perfectly Inelastic Collisions Definition - AP Physics 1 Key Term | Fiveable