This is because rough surface offers more resistance to the movement of an object over it compared to a smooth surface. A rough surface will cause more friction than a smooth surface. Because, rough offers more resistance to the other surface in contact as compared to the smooth surface.
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Rough surface - more friction
This is because rough surface offers more resistance to the movement of an object over it compared to a smooth surface. A rough surface will cause more friction than a smooth surface. Because, rough offers more resistance to the other surface in contact as compared to the smooth surface.
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• Rough Surface - More friction