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**1. Homework Statement**

The coefficient of friction between a racecar’s wheels and the track is 1.0. The car starts from rest and accelerates at a constant rate for 400 m. Find the velocity at the end of the race.

so Vo=0m/s

x=400m

mu=1

acceleration is constant

and we need to find Vf

**2. Homework Equations**

Ff = muN

Velocity and acceleration:

v=dx/dt

a=dv/dt

Constant acceleration:

v = v0 +at

x = x0 +v0t + 1/2at^2

v^2 = vo^2 + 2ax

**3. The Attempt at a Solution**

Personally, I don't know how to approach this. If the mass, acceleration, or time were given I would be able to do this, but since they are not, I'm thoroughly stumped.