Solve the all parts of following question:
Question: An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 10.2 m/s in 3.80 s.
Part A: What is the magnitude and direction of the bird's acceleration?
Part B: Assuming that the acceleration remains the same, what is the bird's velocity after an additional1.60 s has elapsed?
Please, try to give explanation. Thank you.