It seems there's a mistake in the question. Acceleration is measured in meters per second squared (m/s²), not meters per second cubed (m/s³).

Assuming the acceleration is 1.5 m/s², we can use Newton's second law of motion to find the force:

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

* Mass (m): 2000 kg

* Acceleration (a): 1.5 m/s²

F = 2000 kg * 1.5 m/s² = 3000 N

Therefore, a force of 3000 Newtons is needed to give a 2000 kg car an acceleration of 1.5 m/s².