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Impact classification: Bodies that rebound after collision What are bodies called that rebound (restore relative speed) after impact? Choose the correct classification.

Difficulty: Easy

inelastic bodies
elastic bodies
neither elastic nor inelastic bodies
none of these

Correct Answer: elastic bodies

Explanation:

Concept
Elastic impact implies the coefficient of restitution e = 1, so the bodies fully rebound consistent with kinetic energy being conserved in the normal direction.

Contrast
In inelastic impact (0 ≤ e < 1), bodies do not fully rebound; in perfectly inelastic impact (e = 0) they stick together.

Final Answer
elastic bodies

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