A person on a ferry walks at a speed of 2.0 m/s. The ferry’s velocity is 5.0 m/s north, traveling directly away from the dock. a. In which direction should the person walk to have the maximum possible speed relative to a person standing on the dock? What is this speed? b. In which direction should the person walk to have the smallest possible speed relative to a person standing still on the dock? What is this speed? c. If the person is walking south, what is the speed relative to a person on the dock strolling at 1.0 m/s north?