Answer:
Acceleration will be [tex]25miles/hour^2[/tex]
Explanation:
We have given that car is traveling with speed 34 miles per hour
So initial speed of the car u = 34 miles per hour
After 2 hour speed will be 84 miles per hour
So final speed V = 84 miles per hour
Time = 2 hour
From first equation of motion we know that [tex]v=u+at[/tex]
So acceleration [tex]a=\frac{v-u}{t}=\frac{84-34}{2}=25miles/hour^2[/tex]