$\"\"$

Consider $\"\"$ be the speed of the car at time $\"\"$ .

Here time $\"\"$ is taken in hours after $\"\"$ PM.

The speed of the car at $\"\"$ PM is $\"\"$ mi/h.

Acceleration is the derivative of the speed with respect to time.

Acceleration : $\"\"$

$\"\"$

Acceleration of the car between $\"\"$ PM and $\"\"$ PM is exactly $\"\"$ mi/h².

$\"\"$

Acceleration of the car between $\"\"$ PM and $\"\"$ PM is exactly $\"\"$ mi/h².