# An idealized velocity fi eld is given by the formulaV =4txi -2t2yj + 4xzkIs this flow fi eld steady or unsteady? Is it two- or threedimensional?At the point ( x , y , z ) = ( - 1, 1, 0), compute( a ) the acceleration vector and ( b ) any unit vector normal tothe acceleration.

Question

An idealized velocity fi eld is given by the formula
V =4txi -2t2yj + 4xzk
Is this flow fi eld steady or unsteady? Is it two- or threedimensional?
At the point ( x , y , z ) = ( - 1, 1, 0), compute
( a ) the acceleration vector and ( b ) any unit vector normal to
the acceleration.