Part 1: An airplane is flying north at 75m/s while a steady wind blows from the east at 25m/s. What is the airplane's velocity (magnitude and direction) relative to the ground?

Part 2: When the airplane above passed over Chicago, it began to reduce its flight speed at a rate of -2m/s² while at the same time, the wind began accelerating at +2m/s². What is the airplane's displacement 10 seconds after it passed over Chicago?