Answer:
[tex]\boxed{Time = t = 5 seconds}[/tex]
Explanation:
Acceleration = [tex]\frac{V_{f}-V_{i}}{t}[/tex]
Where
Acceleration = 3 m/s²
[tex]V_{f}[/tex] = 23 m/s
[tex]V_{i}[/tex] = 8 m/s
So,
3 = [tex]\frac{23-8}{t}[/tex]
t = [tex]\frac{15}{3}[/tex]
Time = t = 5 seconds
