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A ball moves along a smooth metal surface while an identical ball moves along concrete. Which surface exerts a smaller amount of frictional force on the ball?
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A ball moves along a smooth metal surface while an identical ball moves along concrete. Which surface exerts a smaller amount of frictional force on the ball?

User RomeuBraga
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The smooth surface exerts the lest frictional force.
User Zecong Hu
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4 votes
The ball on the smooth surface
User Kesarling
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