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Why doesn't a ball roll forever after being kicked at a soccer game!
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Jan 19, 2017
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Why doesn't a ball roll forever after being kicked at a soccer game!
Physics
high-school
Hikari Iwasaki
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Friction, lack/loss of kinetic energy
Mmierins
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Jan 19, 2017
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Every time the ball has to push an air molecule or a blade of grass out of the way, it has to use some of its kinetic energy to do that. Eventually it uses up all the KE it has, whereupon it runs out of gas and stops moving.
Bauerpauer
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Jan 22, 2017
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