1. Two boats leave a port at the same time; one travels west at 20 mi/hr and the other travels south at 15 mi/hr. At what rate is the distance between the boats Changing 2 hours after they leave the port? 2. Once Kate's kite reaches a height of 50 ft (above her hands), it rises no higher but drifts due east in a wind blowing 5 ft / s. How fast is the string running through Kate's hands at the moment when she has released 130 ft of string