A helicopter starting from restaccelerates straight up from


A helicopter, starting from rest,accelerates straight up from the roof of a hospital. The liftingforce does work in raising the helicopter. An 810-kg helicopterrises from rest to a speed of 7.0 m/s in a time of 3.5s. Duringthis time it climbs to a height of 8.2m. What is the average power generated by the lifting force?

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Physics: A helicopter starting from restaccelerates straight up from
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