1. The problem statement, all variables and given/known data 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. Relevant 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.