A hiker starts from a camp and walks 3km due north in 45min. He then turns and walks 4km due west in 60min.
(a) Calculate the total distance covered and the total time taken.
(b) Find the magnitude of the hiker’s displacement from the starting point at the end of the walk.
(c) Determine the average speed for the whole journey.
(d) Calculate the magnitude of the average velocity and state its general direction with respect to the cardinal points.