As given in the figure below, a tanker is traveling on the roadway with a constant speed V. It is traveling on a right turn. The radius of curvature of the bend R = [180 + (2 x k)] m and the road angle of the surface with horizontal is 5°. The width of the tanker is 3.2 m, the height is 1.2 m, and the length is given as L = (6 + k / 10) m. Since there is a volume of water of 16 m^3 in the tanker, calculate the minimum value of V speed in km/h so that water can overflow, as shown in the figure.