Question

Calculate the force in which is applied to area of 4.5cm square to producea pressure 22pa

Answer 1

$\large{\implies{Answer}}$

Pressure = force /area

22pa = force/4.5cm^2

force= 22pa X 4.5cm^2

$\large{\implies{\green{99newton}}}$

Answer 2

Answer:

$force \: = \: 99 \: \times {10}^{ - 4}$

Explanation:

A = 4.5 cm^2

$1 {cm}^{2} \: = \: {10}^{ - 4} {m}^{2} \\ 1 \: pascal \: = \: 1 \: \frac{newton}{ {meter}^{2} }$

A = 4.5 × 10^-4 m^2

P = 22 Pascal

P = F/A

F = PA

F = 22 × 4.5 × 10^-4 newton

F = 99 × 10^-4

Here, A is Area of the given substance.

P is pressure of the given substance.

F is force of the given substance.

Force of substance is 99 × 10^-4

PRESSURE

• The force applied to a unit area of surface .
• Si unit of pressure is Newton/m^2 or Pascal.
• Other unit of pressure is atmospheric pressure (atm) , torr , mm of Hg, etc.