Problem: A hot air balloon is initially moving with a velocity of 6.00 m/s in the negative x-direction, a sudden updraft accelerates the balloon upward for 4 seconds changing the balloons velocity to 7.21 m/s at 146.3 degrees from the positive x-direction.
Part A: Find the magnitude and direction of the average acceleration caused by the updraft?
I need help to find the magnitude and direction of the average acceleration caused by the updraft.