$\"\"$

\

The acceleration due to gravity is $\"\"$ meters/sec.

\

The initial velocity of object is $\"\"$ meters/sec.

\

$\"\"$ .

\

Acceleration of a object is rate of change in velocity $\"\"$ .

\

Velocity is $\"\"$ .

\

$\"\"$ .

\

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

\

$\"\"$

\

$\"\"$ .

\

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

\

$\"\"$ .

\

$\"\"$

\

Find $\"\"$ .

\

The position of a object at time $\"\"$ is $\"\"$ .

\

Velocity of a object is rate of change in position $\"\"$ .

\

Position at time $\"\"$ is $\"\"$ .

\

$\"\"$

\

\

$\"\"$ .

\

The initial height of object is $\"\"$ feet.

\

$\"\"$ .

\

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

\

$\"\"$

\

Substitute $\"\"$ .

\

$\"\"$ .

\

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

\

$\"\"$ .

\

$\"\"$

\

The base ball reaches the maximum height when $\"\"$ .

\

$\"\"$

\

$\"\"$ sec.

\

Find maximum height.

\

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

\

$\"\"$

\

The maximum height is $\"\"$ meters.

\

$\"\"$

\

The maximum height is $\"\"$ meters.