Coefficient of Friction needed to move a car

[seaway115]

Hi, I am new here and I need help with a problem.

Homework Statement

Hopping into your Porsche, you floor it and accelerate at 12 m/s/s without spinning the tires. Determine the minimum coefficient of static friction between the tires and the road needed to make this possible.

Homework Equations

F_s = µ_sN

The Attempt at a Solution

This is where I am stuck. The problem only gives me acceleration so I am unable to use the above equation to solve it. 12m = N -Fs?

 

[tiny-tim]

Welcome to PF!

Hopping into your Porsche, you floor it and accelerate at 12 m/s/s without spinning the tires. Determine the minimum coefficient of static friction between the tires and the road needed to make this possible.
…
F_s = µ_sN
…
This is where I am stuck. The problem only gives me acceleration so I am unable to use the above equation to solve it. 12m = N -Fs?

Hi seaway115! Welcome to PF!

Use good ol' Newton's second law … F = ma.

 

[chislam]

At first glance, you might think that you do not have enough information. But if you do as tiny-tim said, you'll see soon enough how nice and easy this problem really is.