Question

Define the unit of pressure. A body of 40kg is standing on sand. The area of his feet is 0.04m2. Calculate the presure exerted by the boy on the sand (g=10ms2)

Answer 1

Hello,

The unit of pressure is called as Pascal (it is SI unit)
Pressure is the perpendicular force acting over a unit area.
So, 1 Pascal = 1 N Force acting over 1 m² area.
So,
Actual unit of pressure is N/m²

But, to honor a renowned scientist we call this N/m² as Pascal.

There are other units also.
The other units of pressure includes atm(atmosphere) , N/m², etc

For getting the calculation of the above problem please see the attachment above.

Hope this will be helping you