Final answer:
The car's average velocity is 20.83 m/s towards the northwest, calculated by dividing the distance of 2500 meters by the time of 120 seconds.
Step-by-step explanation:
The average velocity of a car is calculated by dividing the total displacement by the total time taken for the journey. Since we're given that the car travels northwest for 120 seconds (2 minutes) and covers a distance of 2500 meters, the average velocity can be found using the formula Vavg = distance / time. Applying the values, we get:
Vavg = 2500 m / 120 s = 20.83 m/s towards the northwest.
This is the magnitude and direction of the car's average velocity, which is a vector quantity.