coefficient of restitution

noun

, Physics.

1. the ratio of the relative velocity after impact to the relative velocity before the impact of two colliding bodies, equal to 1 for an elastic collision and 0 for an inelastic collision.

Word History and Origins

Origin of coefficient of restitution¹

First recorded in 1875–80

Example Sentences

Radius of gyration, coefficient of restitution and other obscure forces cause tethered pins to fly around differently than their free-fall counterparts.

From Los Angeles Times

That official explained that MLB reworked the baseball before the 2021 season so that it would have a lower and more consistent coefficient of restitution, or COR.

From Washington Post

The Korean Baseball Organization altered its ball in 2019, moving the coefficient of restitution — the relationship of incoming speed to outgoing speed — by 0.01 while also increasing the weight of the ball by less than one-twentieth of an ounce.

From Washington Times

The faces are manufactured extra thin to be illegal under the rules for coefficient of restitution and the resin is used late in the process to then inch the clubs back into conforming status.

From Golf Digest

He has already figured out which events' flagsticks will be more conducive and beneficial to putting with the pin in: “It depends on the COR, the coefficient of restitution of the flagstick,” he told golf.com in October.

From Golf Digest