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Tennis Rackets & Maintenance : How Does a Tennis Ball Bounce?

December 9, 2019

Hi, my name is Lincoln Ware, I am the Director
of the Austin Tennis Center here in Austin, Texas. Today we’re going to talk about how
a tennis ball bounces. A tennis ball pretty much is a hollow sphere made of rubber with
an outer layer of felt on it. The reason why tennis balls bounce is not necessarily due
to that rubber, it’s due to the added pressure, pressurized gas inside of the tennis ball.
A tennis ball is pressurized to about twelve pounds per square inch. That allows the pressure
on the inside to constantly want to force it’s way out of the ball to get to more constant
pressure on the outside. As the ball hits the ground or your tennis racket, the ball
compresses, forcing that pressurized gas inside to push out and want to expand back out to
it’s circular shape, which forces it to bounce. That’s how a tennis ball bounces. Thank you.

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