The velocity field V =Axi−Ayj represents flow in a “corner,” as shown in Example 5.4, where A=0 3 s−1 and the coordinates are measured in meters. A square is marked in the fluid as shown at t =0. Evaluate the new positions of the four corner points when point a has moved to x = 3 2 m after τ seconds. Evaluate the rates of linear deformation in the x and y directions. Compare area a b c d at t =τ with area abcd at t =0. Comment on the significance of this result.