$$P = mv$$
Where:
- P represents momentum (measured in kg m/s)
- m represents the mass of the object (measured in kilograms)
- v represents the velocity of the object (measured in meters per second)
In this case, the truck has a mass of 4500 kg and is traveling with a velocity of 25 m/s. To calculate its momentum, we substitute these values into the formula:
$$P = mv$$
$$P = (4500 kg)(25 m/s)$$
$$P = 112500 kg m/s$$
Therefore, the momentum of the truck is 112500 kg m/s.