Air (assumed incompressible) flows across the rotor shown in Fig. P11.4 such that the ma...

Air (assumed incompressible) flows across the rotor shown in Fig. P11.4 such that the magnitude of the absolute velocity increases from 15 m/s to 25 m/s. Measurements indicate that the absolute velocity at the inlet is in the direction shown. Determine the direction of the absolute velocity at the outlet if the fluid puts no torque on the rotor. Is the rotation CW or CCW? Is this device a pump or a turbine?