Respuesta :

Recall that

[tex]v_f=v_i+at[/tex]

So we have

[tex]v_f=6.23\dfrac{\rm m}{\rm s}+\left(2.16\dfrac{\rm m}{\mathrm s^2}\right)(5.85\,\mathrm s)[/tex]

[tex]\implies\boxed{v_f\approx18.9\dfrac{\rm m}{\rm s}}[/tex]