Discussion :: Physics
- 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. |
|
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 :
The friction between sand and feet is less than that between concrete and feet.
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