The momentum \( p \) of an object can be calculated using the formula:
\[ p = m \cdot v \]
where:
- \( m \) is the mass of the object,
- \( v \) is the velocity of the object.
In this case, the mass \( m \) of the car is 1500 kg, and its velocity \( v \) is 25 m/s. Plugging in the values:
\[ p = 1500 , \text{kg} \cdot 25 , \text{m/s} = 37500 , \text{kg} \cdot \text{m/s} \]
Therefore, the momentum of the car is 37500 kg·m/s.