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Each of the three helicopter rotor blades shown in Fig. 10-67 is5.20 m long and has a mass of 153 kg. The rotor is rotating at 202rev/min. (a) What is the rotational inertia of the rotor assembly about the axis of rotation? (Each blade can beconsidered to be a thin rod rotated about one end.)(b) What is the total kinetic energy ofrotation?

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