Answer: A car with a mass of 1,500 kg
Explanation:
Since inertia represent the property of a body that causes it to resists any change to its uniform motion, the inertia of a body can be said to be the same as its mass.
Thus, a car with a mass of 1,500 kg has more inertia, as it will resist change in its uniform motion due to its higher weight compared to a car of lesser mass (900 kg)