$\"\"$

Observe the figure :

The depth at $\"\"$ is $\"\"$ .

$\"\"$ .

Length is $\"\"$ .

$\"\"$ .

Therefore length $\"\"$ .

The weight-density of water is $\"\"$ , $\"\"$ .

From the figure: $\"\"$ ranges from $\"\"$ to $\"\"$ .

$\"\"$

The fluid force can be calculated by using the formula : $\"\"$ . $\"\"$

$\"\"$

The fluid force is $\"\"$ .