Given,
The initial velocity of the car, u=10 m/s
The final velocity of the car, v=30 m/s
The acceleration of the car, a= 4.0 m/s²
From one of the equations of the motion, we have
[tex]v=u+at[/tex]
Where t is the time duration.
On rearranging the above equation,
[tex]t=\frac{v-u}{a}[/tex]
On substituting the known values,
[tex]t=\frac{30-10}{4.0}=5\text{ s}[/tex]
Therefore the time that the car takes to accelerate is 5 s
