Question

A pressure of 800 N exerts a pressure of 40 N /cm 2. what area is it acting on?

Answer 1

Answer: 20 cm²

$\text{Formula}: \text{ Pressure} = \dfrac{ \text{Force} }{ \text{Area} }$

Given Information:

• Force = 800 N
• Pressure = 40 N / cm²

Substituting in the formula we get,

$\implies 40 \:N/cm^2 = \dfrac{800\:N}{Area}\\\\\\\implies Area = \dfrac{ 800 \: N}{40\:N/cm^2}\\\\\\\implies Area = 20 \:cm^2$

Hence Area upon which it is acting is 20 cm²

Hope it helped !!

Answer 2

As,we know

p=f/a

where f is force and a is area

so,20/800

40/800

=.5cm