Why would a pumped up football bounce more if you dropped it from a metre than, say, a half flat ball? What is it about having more pressure in the ball that makes it bounce higher when it is rising?
2007-02-18 05:31:14 · 6 answers · asked by alex_isaacs 1 in Science & Mathematics ➔ Physics
A flat ball absorbs energy so when it is dropped from any height, the air is pushed out to the other parts of the ball. This is the energy absorbtion taking place. The bouce effect is created when the air presses against the wall of the ball and stretches the walls of the ball. The wall of the ball, then pulls back creating a trampoline effect and causes the ball to bounce. For a ball that is half flat, there is not enough air to stretch the walls out causing almost no stretch and rebound of the wall.
2007-02-18 06:03:37 · answer #1 · answered by froalskiner 2 · 0⤊ 0⤋
It's like you on a trampoline ... If you miss the trampoline ..
"Splodge" you hit the deck like a sack of s**t.
When you land on the trampoline you bounce back.
A flat ball goes "Splodge" and a well inflated ball bounces back.
The more inflated, the more elasticity in it due to the higher pressure.
2007-02-18 15:15:43 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋
The surface rebounds the force back outward instead of absorbing the impact. It makes the whole structure more rigd and any rigid structure will not absorb the energy as well as a more flexible one.
2007-02-18 13:48:01 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You will get lots of answers, so I will just add that if they did not bounce the NBA would be really , really boring.
2007-02-18 13:38:59 · answer #4 · answered by Bomba 7 · 0⤊ 0⤋
The flatter a ball is the more impact obsorbed.
2007-02-18 13:42:31 · answer #5 · answered by Skinner 2 · 0⤊ 0⤋
Their coefficients of restitution are different.
2007-02-18 15:21:58 · answer #6 · answered by Anonymous · 0⤊ 1⤋