As we know that momentum is given as
[tex]P = mv[/tex]
here we know that
[tex]P = 33 kg m/s[/tex]
[tex]m = 3kg[/tex]
now from above formula we will have
[tex]33 = 3(v)[/tex]
so now we will have
[tex]v = \frac{33}{3}[/tex]
[tex]v = 11 m/s[/tex]
so its speed will be 11 m/s