Question

7) Calculate the area over which a force of 81 N is applied, thereby exerting a Pressure of 9 Pa.

Answer 1

Answer:

Pressure= force/area

Area= force/pressure

Force= 72 N

Pressure= 9 Pa

So, Area =72/9

Area= 8m square

Answer 2

ProvidEd that:

• Force = 81 N
• Pressure = 9 Pa

To calculaTe:

• The area

Solution:

• The area = 9 m sq.

Using concEpt:

• Pressure formula

UsiNg formula:

• ${\small{\underline{\boxed{\sf{Pressure \: = \dfrac{Force}{Area}}}}}}$

RequirEd solution:

$\leadsto \sf Pressure \: = \dfrac{Force}{Area} \\ \\ \leadsto \sf 9 \: = \dfrac{81}{Area} \\ \\ \leadsto \sf Area \: = \dfrac{81}{9} \\ \\ \leadsto \sf Area \: = 9 \: m^2$

Henceforth, area = 9 m sq.