As per the question, the mass of car [tex][m]=1.72*10^{3} kg[/tex]
The force applied on car [tex][F]=6.44*10^{3} N[/tex]
We are asked to calculate the acceleration of the car.
From Newton's second law of motion, we know that force applied on a body is equal to the product of mass and acceleration of the body.
Mathematically force = mass×acceleration
⇒ F = m× a
[tex]a=\frac{F}{m}[/tex]
[tex]= \frac{6.44*10^3}{1.72*10^3} m/s^2[/tex]
[tex]=3.74419 m/s^2[/tex] [ans]
We have been given that the force is applied in east direction.Hence the direction of acceleration of the car will be towards east.