2.13 A flow is described by velocity field V =ai+bxj, where a=2m s and b=1 s−1. Coordinates are measured in meters.

Obtain the equation for the streamline passing through point

(2, 5). At t =2 s, determine the coordinates of the particle that passed through point (0, 4) at t =0. At t =3 s, determine the coordinates of the particle that passed through point (1, 4.25) 2 s earlier. Draw some conclusions about the pathline, streamline, and streakline for this flow.