Answer:
[tex]a=-1.27\ m/s^2[/tex]
Explanation:
Given that,
The initial speed of a driver, u = 27 m/s
Final speed of the driver, v = 13 m/s
Time, t = 11 s
We need to find the automobile's acceleration. We know that the acceleration of an object is equal to the change in speed divided by time taken.
[tex]a=\dfrac{13-27}{11}\\\\a=-1.27\ m/s^2[/tex]
So, the magnitude of automobile's acceleration is [tex]1.27\ m/s^2[/tex].