Final answer:
The momentum of the motorcycle is 6250 kgm/s west.
Step-by-step explanation:
The momentum of an object is defined as the product of its mass and velocity. In this case, the mass of the motorcycle is given as 250 kg and its velocity is 25 m/s west. To find the momentum, we multiply these two values:
Momentum = mass x velocity
Momentum = 250 kg x 25 m/s west
Momentum = 6250 kgm/s west
Therefore, the momentum of the motorcycle is 6250 kgm/s west.