A Boat Is Pulled Toward a Dock by a Rope

Multiple Choice

A boat is pulled toward a dock by a rope with one end attached to the bow of the boat and the other end passing through a ring attached to the dock 2 metres higher than the bow of the boat. If the rope is pulled in at the rate of 0.5 metres per second, how fast is the boat approaching the dock when 3 metres of rope are out? (round to the nearest hundredth metre)

A) 1.15 metres per second
B) 0.67 metres per second
C) 2.38 metres per second
D) 0.97 metres per second
E) 1.68 metres per second