Jetty A on the mainland and jetty B on a resort island are 36 km apart.The bearing of jetty B is 060degree from jetty A.a ferry,with an average speed 10 m/s in still water,travels between jetty A and jetty B. Question.(1)b.Suppose that current flows from east to west with a speed of v m/s,where v<0.using a vector method,find similar expressions for the course on which the ferry must be steered in order to travel from jetty A to jetty B and the time taken for the journey.