Where are tennis balls made?
Where did the tennis ball come from?
Who made first tennis ball?
What were tennis balls originally made of?
Which country produces the most tennis balls?
Why are tennis balls green?
Why is a tennis ball fuzzy?
Who invented the yellow tennis ball?
Why are tennis balls in cans?
How long can a tennis ball last?
Are tennis balls chartreuse?
Are tennis balls Pressurised?
What gas is inside tennis balls?
Why are tennis balls sold?
Should tennis balls be pressureless?
Why do tennis balls go flat?
As the air pushes against the inside of the ball it creates pressure. When the ball hits the ground the air trapped inside the ball is forced inwards. When the air on the inside pushes back the ball is propelled back off the ground, thus creating the bounce.