Question

Cody’s car accelerates from 0m/s to 45 m/s northward in 15 seconds. What is

the acceleration of the car?

Answer 1

The acceleration of the car

$$a=\frac{\Delta v}{\Delta t}=\rm\frac{45\: m/s-0\: m/s}{15\: s}=3\: m/s^2$$

The acceleration is directed northward.