At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 20 knots. How fast (in knots) is the distance between the ships changing at 4 PM?
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NavigationA ship leaves port at noon and has a bearing of S 29° W. If the ship sails at 20 knots, how many nautical miles south