I had a beach ball and i deflated it as much as i could. theni tried

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The discussion centers on the physics of a deflated beach ball and the effects of atmospheric pressure. When air is completely removed from the beach ball and the opening is sealed, the internal pressure drops significantly, creating a vacuum. This vacuum prevents the beach ball from being easily manipulated or opened, as the external atmospheric pressure exerts a force that counteracts any attempt to expand the ball. To restore the ball's shape, air must be reintroduced into the interior.

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i had a beach ball and i deflated it as much as i could. theni tried to open it after i closed the opening. i couldnt. why and what would happen if i pulled on it from lots of sides?

thanks
 
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If you sucked out all the air from it and shut it, then tried to pull out the sides, the pressure due to the atmosphere would make it extremely difficult to do so, since the pressure inside drops as you try to expand the volume. You are basically inducing a vacuumous (is that a word?) region.
 
Yes whozum is right.

Basically, when you are sucking air from it as much as you can, you are trying to create the conditions for vacuum.As the air leaves the ball , the pressure inside keeps on reducing and as a result it ends up getting so less that it possibly cannot counter the outside pressure and will no even "open a bit" unless you induce some air back into it.
 

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