In a Pelton waterwheel of radius R, the flow can be deflected though an angle as high as 165°. A water jet of mass flow rate m and velocity V strikes the buckets on the wheel, (a) If the wheel is rotating very slowly, find the torque that the jet exerts on the wheel, (b) Alternatively, if there is no torque at all on the wheel and it rests on frictionless bearings, what is the maximum possible rotational speed of the wheel? Under what conditions would you expect to get the maximum power of the wheel: at low speed, maximum speed, or some intermediate speed?
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