Discussion :: Physics
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It is more difficult to walk on a sandy road than on a concrete road because
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A.
sand is soft and concreter is hard
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B.
the friction between sand and feet is less than that between concrete and feet
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C.
the friction between sand and feet is more than that between concrete and feet
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D.
the sand is grainy but concrete is smooth
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Answer : Option B
Explanation :
No answer description available for this question.
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