Equations: F=ma and F(f)=μN
Δχ=V0t + 1/2at2
Vf=V0 + at
W=1/2mVF^2 – 1/2mV0^2
Since the car is going to rest, I’m going to assume the final velocity is 0. Since there are no other Y axis forces, I think you can assume N=mg so it equals 9800N. I tried using the F=ma of the x components and got -(9800*.35)+(9800+.2)=ma so the acceleration was -5.39 m/s^2 for the whole system. Plugged that into Vf=Vo+at to get 1.86 seconds and plugged both into the second equation to get 9.27m for ΔX.
That wasn’t any of the possible answer choices, any help is appreciated.