Because of their knowledge of physics and interest in transportation, you\'ve go

Question

Because of their knowledge of physics and interest in transportation, you've got a summer job in the US company Sikorsky, they are interested in investigating the energy consumption of its new helicopter three rotors (Sikorky S-97 Raider). The rotor blade may be regarded as a thin rod. If each of the three rotor blades of the helicopter measures 3.75 m long and has a mass of 135 kg. a) Determine the energy needed to put to work the rotors (2) until the blades reach a speed of 5.0 rev / s. b) If regular gasoline was used to produce that energy -How gallons of it would be needed? Compare that with the energy consumed by an average household in Puerto Rico in a month. Explain your answers.

Explanation / Answer

Energy = 1/2 * I* omega^2

Energy = 1/2 * 126.56*(*6.14)^2 = 59.640 KJ

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