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Bob loves skateboards but wonders how it slows down.
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| Why can't skateboards keep going forever? | |
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| Because friction is effecting your skateboard. | |
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The force that two surfaces exert on each other is called friction.
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Bob: Every surface can't have friction, right?
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| 1) Wrong because every surface is rough! 3)Ice has a small amount of friction | |
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