(II) A helicopter rotor blade can be considered a long
Chapter 10, Problem 10.47(choose chapter or problem)
(II) A helicopter rotor blade can be considered a long thinrod, as shown in Fig. 10-55. (a) If each of the three rotorhelicopter blades is 3.75 m long and has a mass of 135 kg,calculate the moment of inertia of the three rotor bladesabout the axis of rotation, (b) Howmuch torque must the motor applyto bring the blades from rest up toa speed of 5.0 rev/s in 8.0 s? FIGURE 10-55 47.
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