The american antelope (pronghorn) and thw wildebeest are amoung the fastest mammals on tje planet, particularly at running long distances. The maximum recorded speed for the antelope is 88.5 km/h, which it can substain for nearly one kilometer. On the other hand, the distance, d, in kilometers that the wildebeest can run in t hours is given by the equation d = 80.5t. assuming both animals are running at constant speeds, which animal can run faster