Speeding

hard physics problem? Help meeee! Do not show me the job?!?

A small plane has a speed of 320 km / h. It takes off in Manhattan to get their passengers to the north to Lincoln, Nebraska. But the win is blowing at an average speed of 86 kmh eastward. A) In which direction be the plane or the starting point for the speed in relationship to land is north? b) The pilot of the plane makes an emergency course correction. Becomes his plane to fly to 45 degrees N, E at the same speed. If the change takes 12 s what is the average acceleration of the aircraft?

a) Northeast, making it a kind of tip in the wind, but be corrected by the speed of its own.