Question

9. An object starting with a velocity of 20m/s accelerates to
45m/s. Its acceleration rate is 4m/s/s. How long did this take?
ROUND TO 2 DECIMALS!

Answer 1

Answer:

6.25 s

Explanation:

V=u+at

t= (v-u)/a

 = (45-20)/4 = 6.25 s