At one instant a bicyclist is 46.0 m due east of a park's flagpole, going due south with a speed of 10.0 m/s. Then 34.0 s later, the cyclist is 46.0 m due north of the flagpole, going due east with a speed of 10.0 m/s. For the cyclist in this 34.0 s interval, what are the (a) magnitude and (b) direction of the displacement, the (c) magnitude and (d) direction of the average velocity, and the (e) magnitude and (f) direction of the average acceleration