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At one instant a bicyclist is 26.0 m due east of a park's flagpole, going due...

At one instant a bicyclist is 26.0 m due east of a park's flagpole, going due south with a speed of 15.0 m/s. Then 20.0 s later, the cyclist is 26.0 m due north of the flagpole, going due east with a speed of 15.0 m/s. For the cyclist in this 20.0 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? (Give all directions as positive angles relative to due east, where positive is measured going counterclockwise.)

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