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During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 59.0 m/s.

What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover?

  • Physics -

    impulse*time= mass*velocity
    weight= mass/time*velocity
    mass/time=weight/velocity= mg/59

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