Because of their knowledge of physics and interest in transportation, you\'ve go
ID: 1509252 • Letter: B
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