Bouncy balls rebound in response to the amount of force used when they contact hard surfaces. That simply means that a bouncy ball will bounce back at you with about 80 percent of the energy you used .
So me and my family were taking a walk today, and came across this at one of the houses we went by! The woman who owned the house said she set it up for all the neighborhood kids, so I said to my brother 'bro I don't care how old I am, hold my shoes'😂
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