Question

It is difficult to walk bare feet on a sandy ground as the sand :

• A. is coarse, rough and irritating and gets everywhere
• B. flies away
• C. has crabs hiding in them
• D. yields under our weight

Answer 1

The correct option is D yields under our weight

When we walk barefoot on the sand, the sand yields under our weight. When we push off some of the ground that were meant to support ourselves, gets pushed away rather than staying in place. So, we do not get proper normal reaction i.e. friction force that helps us to walk. [Option D]