In 1987, British skier Graham Wilkie achieved a speed of v = 211 km/h going downhill. Assuming that he reached the maximum speed at the end of the hill and then continued on the horizontal surface, find the maximum distance d he could have covered on the horizontal surface. Take the coefficient of kinetic friction µk to be constant throughout the run; neglect air resistance. Assume the hill is 225 m high with a constant slope of 30° with the horizontal.