A. free vortex motion
B. forced vortex motion
C. free vortex at center and forced vortex outside
D. forced vortex at center and free vortex outside
Correct Answer: forced vortex at center and free vortex outside ✔
Last Updated: January 17, 2019
A. free vortex motion
B. forced vortex motion
C. free vortex at center and forced vortex outside
D. forced vortex at center and free vortex outside
Correct Answer: forced vortex at center and free vortex outside ✔
Last Updated: January 17, 2019