A fluid is flowing between parallel plates, as shown in the figure. The length of the plates is denoted as L while their width can be denoted as W. The bottom plate is at rest and the top plate is moving at the constant velocity 2V. The flow between the plates is obtained only by the movement of the upper plate; there is no effect of pressure difference. Derive the velocity distribution. (Do not forget to write the necessary assumptions. Start by writing the shell balance for all the forces and show all the terms that are being canceled out from the shell balance equation.)