The force it would take to accelerate a 900-kg car a rate of 3 ms is?

The force required to accelerate the car can be calculated using Newton's second law, which states that force equals mass times acceleration. So, the force needed to accelerate a 900-kg car at a rate of 3 m/s^2 would be 900 kg * 3 m/s^2 = 2700 N.