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which would take more force to move over ice:a sled with a rough metal bottom or a sled with a smooth metal bottom? why?
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which would take more force to move over ice:a sled with a rough metal bottom or a sled with a smooth metal bottom? why?

User Usman Jdn
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The sled with a rough metal bottom would take more force to move over ice, because the rough surface would increase friction and the force needed.
User Seaky Lone
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