General Knowledge - Physics - Discussion

Discussion Forum : Physics - Section 1 (Q.No. 22)
22.
It is more difficult to walk on a sandy road than on a concrete road because
sand is soft and concreter is hard
the friction between sand and feet is less than that between concrete and feet
the friction between sand and feet is more than that between concrete and feet
the sand is grainy but concrete is smooth
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
35 comments Page 4 of 4.

Rohit bains said:   10 years ago
C is correct because more friction = less speed.

Yawar said:   10 years ago
B is correct as the friction between sand and feet is less so its correct.

Sivaranjani said:   9 years ago
There is also friction in the concrete road that's the reason we are able to walk. But in the sandy road, we usually press our feet hard on it to walk since we don't actually get a good grip.

This is because the friction between the sand and feet is less.

Hope I made it clear!

Elakiya jyothi said:   9 years ago
What is mean by lithology?

Neeharika said:   9 years ago
I think option c is correct because friction is more when we walk on sand than on the conrete road.


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