Coefficient of static friction

[feb2_sg]

A car starts from rest and accelerates at a constant rate for 1km, covering that distance in 20s. Ignore air resistance. Determine the coefficient of static friction between the tires and the pavement.

[mezarashi]

I believe you would need more information regarding the weight of the car, but most importantly, you need to show us your approach, or what's going on in your thoughts.