The measured shaft torque on the turbomachine shown in Fig. P12.2 is \(-60 \mathrm{~N} \cdot \mathrm{m}\) when the absolute velocities are as indicated. Determine the mass flowrate. What is the angular velocity if the magnitude of the shaft power is \(1800 \mathrm{~N} \cdot \mathrm{m} / \mathrm{s}\) ? Is this machine a pump or a turbine? Explain.

Figure P12.2

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=0.2 m r2 0.1 m V = 6 m/s 50 30 V = 5 m/s