An unsuspecting bird is coasting along in an easterly direction at 2.00 mph when a strong wind from the south imparts a constant acceleration of 0.400 m/s2 . if the wind's acceleration lasts for 2.30 s , find the magnitude and direction theta (measured counterclockwise from the easterly direction) of the bird's displacement over this time interval. assume that the bird is originally travelling in the x direction and that there are 1609 m in 1 mi .