hiker walks 3.55 km north and then 2.75 km east, all in 2.60 hours. HINT magnitude= direction= (a) Calculate the magnitude (in km) and direction (in degrees north of east) of the hiker's displacement during the given time. km north of east (b) Calculate the magnitude (in km/h) and direction (in degrees north of east) of the hiker's average velocity during the given tim magnitude= direction= km/h north of east (c) What was her average speed (in km/h) during the same time interval