Figure P17 18. A centrifugal water pump runs at 880 rpm and has an outside radius of 1.25 ft (B. = 165º), an inside radius of 0.50 ft (Bi= 130°), and an impeller thickness (width) of 0.40 ft, delivering water at a rate of 15.1 ft³/s. The water temperature is 40°F. Calculate the torque of the pump.

Fig: 1