F (x) = A + Bx

F (x) = A + Bx + Cx^{2}

μ(x) = 0.2 ∗ \frac{x}{3m}

KE = \frac{1}{2}mv^{2}

Work = ∫ F⃗ · d⃗x

Work = ∫ |F ||dx|

Work_{net} = ∫ F⃗_{net} · d⃗x

KE_{f} = KE_{i} + Work_{net}

= KE_{i} + ∫ F⃗_{net} · d⃗x