Coefficient of Restitution for Elastic Collision – Rankers Physics

Collision: Practice Problem & Solution

The coefficient of restitution e for a perfectly elastic collision is: (1988)
$1$
$0$
$\infty$
$-1$

Solution Explained:

To solve this problem, we apply the core principles of Collision. Understanding the underlying formula is key to arriving at the correct answer below:

By definition, the coefficient of restitution $e$ is equal to $1$ for a perfectly elastic collision where kinetic energy is fully conserved.

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