$\"\"$

\

The object is falling then the acceleration of the object is $\"\"$ .

\

The acceleration of the object is $\"\"$ , where $\"\"$ is the velocity.

\

Hence $\"\"$ .

\

The antiderivative of $\"\"$ is $\"\"$ .

\

Initial velocity is $\"\"$ .

\

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

\

$\"\"$

\

Therefore the velocity of the object is $\"\"$ .

\

$\"\"$

\

The velocity of the object is $\"\"$ , where $\"\"$ is the distance.

\

Hence $\"\"$ .

\

The antiderivative of $\"\"$ is

\

$\"\"$

\

Initial displacement is $\"\"$ .

\

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

\

$\"\"$

\

Therefore the displacement of the object at time $\"\"$ is $\"\"$ .

\

$\"\"$

\

The velocity of the object is $\"\"$ .

\

Squaring on each side.

\

$\"\"$

\

From displacement of the object $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .