A train traveling at v0 = 28.0 m/s begins to brake by applying a velocity-dependent instantaneous acceleration a(v) = ? /(v+u) m/s^2, where ? = - 22.0 m^2/s^3, v is the instantaneous velocity of the train, and u = 0.4 m/s. Determine the distance traveled by the train until it comes to a complete stop.