Let's write out the given equation,
[tex]V=u+at[/tex]Let's write out the data given,
[tex]\begin{gathered} u=12 \\ a=9 \\ t=4 \end{gathered}[/tex]Now, let's substitute the data into the given equation,
[tex]\begin{gathered} V=12+9(4) \\ V=12+36 \\ V=48\text{ m/s.} \end{gathered}[/tex]Hence, V= 48m/s.
