Given,
The mass of the car, m=2000 kg
The momentum of the car, p=80000 kg·m/s
The momentum of an object is given by the product of the mass of the object and its velocity.
Thus the momentum of the car is given by,
[tex]p=mv[/tex]Where v is the speed of the car.
On rearranging the above equation,
[tex]v=\frac{p}{m}[/tex]On substituting the known values,
[tex]\begin{gathered} v=\frac{80000}{2000} \\ =40\text{ m/s} \end{gathered}[/tex]Thus the speed of the car is 40 m/s
