A three-dimensional velocity field is given by Determine the following: (a) the magnitude of the velocity at the origin, (b) the acceleration field, (c) the location of the stagnation point, and (d)...

A three-dimensional velocity field is given by

Determine the following: (a) the magnitude of the velocity at the origin, (b) the acceleration field, (c) the location of the stagnation point, and (d) the location where the acceleration is equal to zero.