General Knowledge - Physics - Discussion

Option B is correct.

@Koushik.

Who told you won't fall on sand?

The answer is sand are dust particles and can blow away by wind and road thick and it so cannot blow away by the wind so when the wind blows the sand flies away and we will loose grip but on road, the concrete stays strong and we can walk easily.

I think option C is correct.

This phenomena proves that action force is more and reaction force is less. Less friction is negligible but more friction is cause for unequal action and reaction which challenges Newton's third law of motion. There are many evidences in our universe which has unequal action and reaction.

I have proved these things in practical, mathematical way and logical way with a new law. The research paper has been submitted to APS (American Physical Society) journal.

B Option is correct. I agree with the given answer.

I agree with the given answer, option B.

What is the correct answer? Explain.

I think there is less normal force so that our feet immersed in sand and we feel difficult.

Correct option is B. C given reverse which is incorrect.

Option c is correct.