$\"\"$

Linear density of the rod is $\"\"$ kg/m, Where $\"\"$ is measured in meters.

Length of the rod is $\"\"$ m.

If the mass of a rod measured from the left end to a point $\"\"$ is $\"\"$ , then the linear density is $\"\"$ .

Therefore, $\"\"$ .

$\"\"$

$\"\"$ .

Total mass of the rod is $\"\"$ kg.

$\"\"$

Total mass of the rod is $\"\"$ kg.