Journal of Science International School Bangkok (Dec 2013)
Air Pressure and Coefficient of Restitution of a Ball
Abstract
The relationship between the pressure of a ball and its coefficient of restitution was investigated, a rubber handball was inflated to eight varying air pressures and then dropped from a constant height. With measurements of its mass, circumference, dropped height and rebound height in conjunction to the equation of coefficient of restitution, the relationship between the pressure of the ball and its coefficient of restitution was determined to be inversely exponential, with the coefficient of restitution approaching a limit as pressure increased.
