ANSWER:
7.67 m/s
STEP-BY-STEP EXPLANATION:
We can determine that the final velocity is given by the following equation:
[tex]v^2=u^2+2\cdot a\cdot s[/tex]In this case the acceleration is gravity, which would be gravity (9.8 m/s) and the distance (s), would be height.
We substitute and calculate the final speed:
[tex]\begin{gathered} v^2=0^2+2\cdot9.8\cdot3 \\ v^2=0+58.8 \\ v=\sqrt[]{58.8} \\ v=7.67\text{ m/s} \end{gathered}[/tex]The velocity at the moment of impact is 7.67 m/s
