The S.I. unit of pressure is N/m2.
Pressure =Force /area
Pressure can be also call Pascal. 1000Pa=1kPa\
To find force,mass x gravitaional field strength = ~~~~N
To find area , length x breath = ~~~~m2
When the force decreases,the pressure decreases.
When the area increases, the pressure decreases.
One can lie on a bed of nails without getting injured as...
-the area of the bed of nails is significant
-thus the weight of the person is significantly less and the pressure would be very little.
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