With the wind a polynesian boater can move at 7.1Km/Hr relative to the water. They want to go directly east to an island 271.07Km away. There is an ocean current flowing at 1.66Km/Hr at 31.88o north of due west. (a) What heading should they point their boat to arrive at their destination (in degrees south of due east)? (b) How long does the trip take them? In hours