$\"\"$

Force applied on the object is $\"\"$ .

$\"\"$ .

Displacement of the object is $\"\"$ .

$\"\"$

$\"\"$ .

The amount of work done in moving an object is $\"\"$ ,

where $\"\"$ is the force applied on the object and $\"\"$ is the displacement of the object.

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$ .

Work done is $\"\"$ .

$\"\"$

$\"\"$ .