Answer:
[tex]a=4m/s^{2}[/tex]
Explanation:
From the concept of average acceleration we know that
[tex]a=\frac{v_{2}-v_{1} }{t_{2}-t_{1} }[/tex]
From the exercise we know that
[tex]v_{2}=30m/s\\v_{1}=10m/s\\t_{2}=5s\\t_{1}=0s[/tex]
So, the average acceleration of the car is:
[tex]a=\frac{30m/s-10m/s}{5s}=4m/s^{2}[/tex]
