Measuring the Rebound Resilience of a Bouncing Ball
Physics Education Volume 47, Number 5, ISSN 0031-9120
Some balls which are made of high-quality rubber (an elastomeric) material, such as tennis or squash balls, could be used for the determination of an important property of such materials called resilience. Since a bouncing ball involves a single impact we call this property "rebound resilience" and express it as the ratio of the rebound height to the initial drop height of the ball. We determine the rebound resilience for three different types of ball by calculating the coefficient of restitution of the ball-surface combination from the experimentally measurable physical quantities, such as initial drop height and time interval between successive bounces. Using these we also determine the contact time of balls with the surface of impact. For measurements we have used audio, motion and surface-temperature sensors that were interfaced through a USB port with a computer. (Contains 1 table and 14 figures.)
Wadhwa, A. (2012). Measuring the Rebound Resilience of a Bouncing Ball. Physics Education, 47(5), 620-626.