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» home » 2024 High School Physics Photo Contest Gallery » Ceylin TÜRKOGLU

Linear Speed of a Racket

Ceylin TÜRKOGLU

Award: Top 100

School: terakki foundation sisli terakki high school
Teacher: turgut akbatur
Category: Contrived
Photo #14820

Linear Speed of a Racket

I noticed something while I was playing with a tennis racket during a regular P.E class. It seemed that the center of the racket stayed clear but the edges of it were unclear as I turned it around. This difference in the view of the racket is caused by the linear speed which is defined as the measure of the physical distance traveled by a moving object. To calculate the linear speed of an object moving in circular motion,  like the racket,  its angular speed (the rate of angular displacement's change) and the radius of its circular path is multiplied. Therefore,  as the radius of the circular path increases the linear speed increases. In this case,  the radius of the edges of the tennis racket is larger than the radius of the center which results in the edges to have a greater linear speed than the center and turn faster. This difference in the speed causes the difference in the view as the center is clearer than the edges since it turns slower.

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