It is more difficult to walk on a sandy road than on a concrete road because
  • 1sand is soft and concreter is hard.
  • 2the friction between sand and feet is less than that between concrete and feet.
  • 3the friction between sand and feet is more than that between concrete and feet.
  • 4the sand is grainy but concrete is smooth.
Answer:- 1
Explanation:-

Solution:
The friction between sand and feet is less than that between concrete and feet.

Post your Comments

Your comments will be displayed only after manual approval.

Test
Classes
E-Book