Here's how to solve this problem using Newton's Second Law of Motion:

Newton's Second Law:

* Force (F) = Mass (m) x Acceleration (a)

Given:

* Mass (m) = 3000 kg

* Acceleration (a) = 2 m/s²

Calculation:

* F = 3000 kg * 2 m/s²

* F = 6000 N (Newtons)

Answer: A net force of 6000 Newtons is required to accelerate the car at a rate of 2 meters per second squared.