$\"\"$

\

The free-falling body height is $\"\"$ .

\

Solve for $\"\"$ .

\

Consider $\"\"$ .

\

Subtract $\"\"$ from each side.

\

$\"\"$

\

$\"\"$ \ \

\

Multiply each side by 2.

\

$\"\"$

\

$\"\"$

\

Divide each side by $\"\"$ .

\

$\"\"$

\

Cancel common terms.

\

$\"\"$ .

\

$\"\"$

\

The value of $\"\"$ .