A ship leaves the island of Guam and sails 285 km at 40.0° north of west. In which direction must it now head and how far must it sail so that its resultant displacement will be 115 km directly east of Guam?

Solution 78P STEP 1: The graphical representation for the problem is given below. Here the initial displacement was 285 km towards north-west. Finally the sailor should reach 115 km towards east from his starting position. So, the vector OA = 285 and vector OB=115. 0 As, the angle made by vector OA with the horizontal axis is 40 , 0 0 0 The angle AOB is equal to 180 40 =...