Question

4) On the beach why do your legs sink in day sand
while it does not sink in wet sand?​

Answer 1

Legs sink in dry sand on beach than wet sand because sand contains lots of air in them making them loose and light .When foot is set on the wet sand , the pressure is distributed by the wet sand over a larger surface area making it difficult for the sand to be displaced . Hence, legs do not sink in wet sand .

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Answer 2

Answer:

This is due to the fact ro the that the beach sand provides an unpredictable and uneven walking surface the foot will sink slightly into the sand.this will provide the least amount of stability ,which forces you to use muses throughout your legs