Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun
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Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip.
(a) Calculate the magnitude of the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 300 rev/min.
(b) Compare the linear speed of the tip with the speed of sound (taken to be 340 m/s).
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Part a The centripetal acceleration is given by the formula ac r2 where ac is the centripetal accele...View the full answer
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