Answer:
Final speed of the racer, v = 16.55m/s
Explanation:
It is given that,
Initial velocity of the racer, u = 12 m/s
Acceleration, [tex]a=0.65\ m/s^2[/tex]
time taken, t = 7 s
We need to find the final velocity of the racer. Let it is given by v. It can be calculated using first equation of motion as :
[tex]v=u+at[/tex]
[tex]v=12+0.65\times 7[/tex]
v = 16.55 m/s
So, the final speed of the racer is 16.55 m/s. Hence, this is the required solution.