Question

When is the pressure on the ground more-when a man is lying or standing?Explain mathematically

Answer 1

Pressure is more on a standing man than a lying man, because while standing less area is covered by man in comparison to standing, and area is inversely proportional to pressure.

Answer 2

Force applied by the body is same in both the cases. But pressure i.e
Pressure =Force/Area
is more hen man is standing because area in contact is more as we know is inversly propotional to area . so,when area is more pressure is less.In case when man is standing area in contact is less so pressure is more