Answer:
The average acceleration is [tex]8\ m/s^2[/tex]
Explanation:
Uniform Acceleration
When an object varies its velocity at the same rate, the acceleration is constant.
The relation between the initial and final speeds is:
[tex]v_f=v_o+a.t[/tex]
Where:
vf = Final speed
vo = Initial speed
a = Constant acceleration
t = Elapsed time
The acceleration can be calculated by solving for a:
[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]
The Indy 500 race car increases its speed from vo=4 m/s to vf=36 m/s in t=4 s. Thus, the average acceleration is:
[tex]\displaystyle a=\frac{36-4}{4}=8\ m/s^2[/tex]
The average acceleration is [tex]8\ m/s^2[/tex]
