Lifting force does work in raising the helicopter

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A helicopter, starting from rest, accelerates straight up from theroof of a hospital. The lifting force does work in raising the helicopter. An 810-kg helicopter rises from rest to a speedof 9.0 m/s in a time of 3.5s. During this time it climbs to a height of7.8m. What is the average power generated by the lifting force?

Reference no: EM13654248

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