Question: A fluid undergoes two - dimensional flow. Its velocity at any point ( x , y ) is given by V = - 4 y

A fluid undergoes two-dimensional flow. Its velocity at any point (x,y) is given by V=-4yi+4xj feet/second.
For fluid at (0,2), determine the rate of vorticity about the z-axis in radians/sec.
Answer with a positive number if the "spinning" is counterclockwise, a negative number if the vorticity is clockwise.
A fluid undergoes two - dimensional flow. Its

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