The radar operator of a stationary Coast Guard cutter observes that at 10h 30m an unidentified ship is at a distance of 9.5 km on a bearing of 60 degrees east of north and at 11h 10m the unidentified ship is at a distance of 4.2 km on a bearing of 33 degrees east of north. Measured from its position at 10h 30m, what is the displacement vector of the unidentified ship at 11h 10m