Momentum — practice question

A vehicle of mass $900\,\text{kg}$ is moving at a velocity of $20\,\text{m s}^{-1}$. What is the momentum of the vehicle?

• A$45\,\text{kg m s}^{-1}$
• B$450\,\text{kg m s}^{-1}$
• C$18\,000\,\text{kg m s}^{-1}$
• D$180\,000\,\text{kg m s}^{-1}$