Erik's disabled sailboat is floating at a stationary location 3 miles east and 3 miles north of Kingston. A ferry leaves Kingston heading due east toward Edmonds at 15 mph. At the same time, Erik leaves the sailboat in a dinghy heading due south at 10 ft/sec (hoping to intercept the ferry). Edmonds is 6 miles due east of Kingston.

Required:
Compute Erik's speed in mph and the ferry's speed in ft/sec.