Help please question 22.

A dinghy is pulled toward a clock by a rope from the bow through a ring on the dock 6 ft above the bow. The rape is hauled in at the rate of 'l ft/sec. Complete parts (a) and (b). Ring at edge of dock a. How fast is the boat approaching the dock when 10 ft of rope are out? D ft/sec (Type an integer or a simplified fraction.) b. At what rate is the angle 6 changing at this instant? :I rad/sec (Type an integer or a simplied fraction.)