# MATH1211_WRITTING_ASSIGMENT_WEEK6.pdf - 1 An airplane is...

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1. An airplane is flying towards a radar station at a constant height of 6 km above the 1. An airplane is flying towards a radar station at a constant height of 6 km above the ground. If the distance s between the airplane and the radar station is decreasing at a ground. If the distance s between the airplane and the radar station is decreasing at a rate of 400 km per hour when s=10 km., what is the horizontal speed of the plane? rate of 400 km per hour when s=10 km., what is the horizontal speed of the plane? Make sure your answer includes units. Make sure your answer includes units.
2. A boat is being pulled into a dock by a rope attached to it and passing through a 2. A boat is being pulled into a dock by a rope attached to it and passing through a pulley on the deck, positioned 6 meters higher than the boat. If the rope is being pulley on the deck, positioned 6 meters higher than the boat. If the rope is being pulled in at a rate of 3 meters/sec, how fast is the boat approaching the dock when it is