Question

Calculate the force applied (in newtons) if a pressure of 7Pa is acting on an area of 21m2.

Answer 1

Generally, force acting per unit area on a surface is pressure.

Pressure = Force applied/Area of surface.

Given pressure = 7 Pa

area of surface = 21m^2

so,

7 = force/21

Force applied = 147 N

Answer 2

Pressure= force/area


Given: pressure= 7 pa
Area=21 m^2

To find: force= area X pressure

Solution: therefore force= 21x7
=147 N

Hope this helps