Final answer:
The momentum of the car is 16,000 kg·m/s.
Step-by-step explanation:
The momentum of an object is defined as the product of its mass and velocity. To calculate the momentum of a car, you can use the formula:
Momentum = mass × velocity
In this case, the mass of the car is given as 800 kg and the velocity is given as 20 m/s. Simply plug these values into the formula to calculate the momentum of the car:
Momentum = 800 kg × 20 m/s = 16,000 kg·m/s