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ERIC Number: EJ931205
Record Type: Journal
Publication Date: 2010-Nov
Pages: 6
Abstractor: As Provided
Reference Count: 10
ISBN: N/A
ISSN: ISSN-0031-9120
Determination of Contact Time of Rubber Balls Using a Digital Oscilloscope
Wadhwa, Ajay
Physics Education, v45 n6 p635-640 Nov 2010
We present a new method for determining the contact time of a rubber ball with the rebounding surface by using a sound-detecting electronic circuit and a digital storage oscilloscope. The rubber ball (a tennis ball or squash ball) is dropped from a known height onto a rigid surface and its contact time on first bounce is determined on the oscilloscope. Using the known value of the coefficient of restitution (COR) of the ball-surface combination, we also determine the value of air pressure inside the ball. (Contains 9 figures.)
Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: info@ioppubusa.com; Web site: http://journals.iop.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A