91Ó°ÊÓ

Fluid statics, often known as hydrostatics, is a branch of fluid mechanics that investigates the state of balance of a floating and submerged body, as well as the pressure in a fluid, or imposed by a fluid, on an immersed body.

The pressure is the rate of force appliedto the surface per unit area.

Here the open end is at height h so it will exert a force inside.

The diameter of the cooker is$25cm$.

The radius R will be$25/2cm$.

The radius R in meter is$0.125m$.

The pressure P inside the cooker is$300atm$.

But in the formula we need to convert pressure into Pascal

The pressure P in Pascal $300×1.01×{10}^{5}Pa$.

The force exerted by the pressure cooker will be themultiple of pressure exerted in the cooker to the area of the lid of the cooker

$$\begin{gathered} F=P×A \\ =300×1.01×{10}^5×\left(\mathrm{π}{R}^2\right) \\ =300×1.01×{10}^5×\left(\frac{22}{7}{\left(0.125\right)}^2\right) \\ =1.49×{10}^6\text{N} \end{gathered}$$

Therefore, force exerted by the pressure cooker is:$1.5×{10}^{6}N$.

Also, the force is to be applied is immense amount of force.