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March 26, 2017

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A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. An 850-kg helicopter rises from rest to a speed of 6.9 m/s in a time of 3.8 s. During this time it climbs to a height of 9.4 m. What is the average power generated by the lifting force?

  • Physics - ,

    power= work/time= (mgh+1/2 mv^2)/time

  • Physics - ,

    25930.59 watts

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