It is easy to walk on a smooth road as compared to a rough road.
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1
Explanation:
Because when we walk on rough road, the friction increases So we have to put more effort. But on a smooth road the friction is less and we feel free to walk and we need not to put more effort.
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3
Answer:
It is easier to walk on a rough surface than on a smooth surface . This is because a rough surface offers more friction and It is the friction between the surface and our feet that helps us to walk .
Explanation:
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