A Fire Fighting Vehicle of Mass 12,000 Kg Is at Rest

Multiple Choice

A fire fighting vehicle of mass 12,000 kg is at rest but free to roll with no resistance. If you push it forward with a force of 500 N, the momentum at the end of 10 s of pushing will be

A) 5000 kg m/s.
B) 20,000 kg N/s.
C) 0.416 m/s.
D) zero.