Answer:
[tex]a=2.5\ m/s^2[/tex]
Explanation:
Given that,
Initial velocity, u = 7 m/s
Final velocity, v = 12 m/s
Time, t = 2 s
We need to find the average acceleration of the car. The acceleration of an object is equal to the rate of change of its velocity. It can be given by :
[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{12-7}{2}\\\\a=2.5\ m/s^2[/tex]
So, the acceleration of the car is [tex]2.5\ m/s^2[/tex].