A boat is being pulled toward a dock as shown in the figure to the right. If the Rope 4 ft rope is being pulled in at the rate of 2 feet per second, how fast is the Boat Dock distance between the dock and the boat decreasing when it is 4 feet from the dock? . . . The distance between the dock and the boat is decreasing by feet per second when the boat is 4 feet from the dock. (Round to the nearest thousandth as needed.)