Force is given as a product of mass and acceleration and is given by Newton's second law of motion as:
F = m x a
where, F is the force, m is the mass and a is the acceleration.
In this case, mass of the car is 2890 kg and the required acceleration is 3 m/s^2.
Hence the force required to produce this acceleration is:
F = m x a = 2890 x 3 = 8670 kg m/s^2 or 8670 N or 8.67 kN.
Hope this helps.