Question

An Indy 500 racecar's velocity increases from 4 m/s to 34 m/s over a 6 second time period. What is it average acceleration?

Answer 1

the average acceleration is
77.666666

Answer 2

$acceeration = \frac{change \: in \: velocity}{total \: time \: taken} \\ = \frac{final \: velocity - initial \: velocity}{total \: time \: taken} \\ = \frac{34 - 4}{6} \\ = \frac{30}{6} \\ 5 m {s}^{ - 2}$
Hope it will help you!!