Question

explain when will presure value increases and decrease with daliy life example
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Answer 1

pressure will increase if the area of contact is less and decrease of the area of contact is more.

if the area is less the pressure must be applied on that less area which increases the pressure whereas is the area is more, the pressure gets distributed and it becomes less.

example of a screw on a wall: the nails have a less cross section area because if the area is more and not pointed the nail doesn't go inside the wall