Question

it is difficult to walk for a man on sand why?​

Answer 1

Answer:

This is because sand yields under the weight of the man. ... This difficulty can be overcome by placing wooden plank on the sand. Then the weight of the man will act on larger area and hence pressure exerted on sand decreases and the sand does not yield.

Explanation:

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Answer 2

Answer:

This is because sand yields under the weight of the man. This difficulty can be overcome by placing wooden plank on the sand. Then the weight of the man will act on larger area and hence pressure exerted on sand decreases and the sand does not yield.

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