# Can the coefficient of restitution be negative?

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No, the coefficient of restitution cannot be negative. It is a dimensionless quantity that represents the ratio of relative speeds after and before a collision between two objects. It ranges from 0 to 1, where 1 represents a perfectly elastic collision and 0 represents a perfectly inelastic collision.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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