A Helicopter Stays Aloft by Pushing Large Quantities of Air

question 34

Multiple Choice

A helicopter stays aloft by pushing large quantities of air downward every second.What mass of air must be pushed downward at 30.0 m/s every second to keep a 1000 kg helicopter aloft?

• A) 120 kg
• B) 245 kg
• C) 327 kg
• D) 490 kg

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