George walks to a friend's house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire
walk takes him 13 seconds.
(i) Explain which kind of speed is the most accurate speed to calculate for
George's motion out of the following: average speed and instantaneous
speed? Average speed would provide a more accurate speed because it deals
with the data points for the entire trip unlike instantaneous speed that deals
with only a specific moment of time in the journey,
(ii) Calculate the DISPLACEMENT George made during his movement.
iii) Calculate the Average Speed George had for his entire trip.