At what speed is the boat approaching the dock

Reference no: EM13195872

A dock is 15 feet above the water. Suppose you stand on the edge of the dock and pull a rope attached to a boat at the constant rate of 3 ft/sec. Assuming that the boat remains at water level, at what speed is the boat approaching the dock when it is 20 feet from the dock?

Reference no: EM13195872

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