Question

Define pressure. Give its SI unit and some examples​

Answer 1

Answer:

Unit of pressure: pascal (Pa)

Pressure is the amount of force applied perpendicular to the surface of an object per unit area and the for it is p (or P). The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N/m2, or kg·m−1·s−2).

Explanation:

Answer 2

Answer:

pressure is defined as force or thrust per unit area on the surface.

It's unit is Pascal

$pressure \: = \: \frac{force}{area} \\ \\ pascal \: = \: \frac{newton}{metre \: square}$

So Pascal = Nm–²

example:- sharp edged knife is used to cut fruits.

as less the area more will be the pressure.

similarly nail end is made sharp or pointed end so that it is easily hammered into wall