Each propeller on a King Air twin-engine airplane consists of three blades, each of mass 10 kg and length 125 cm. The blades may be treated approximately as uniform, thin rods, (a) What’s the propeller’s rotational inertia? (b) If the plane’s engine develops a torque of 2.7 kN·m, how long will it take to spin up the propeller from 1400 rpm to 1900 rpm?
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