The momentum can be calculated with the following formula:
[tex]p=mv[/tex]
Where m is the mass and v is the velocity.
So, for m = 2500 kg and v = 21 m/s, we have:
[tex]\begin{gathered} p=2500\cdot21 \\ p=52500 \end{gathered}[/tex]
Rounding to 2 significant figures, we have a momentum of 53000 kg*m/s
