What work is done by gravitational force on an airplane when it take off
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Well the work being done is against gravity,gravity is thus doing negative work on it.and work done by plane by its internal forces will be 'mgh'
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Gravity is the force that pulls objects toward the Earth. Lift is the force that pushes an aircraft into the air. When paper airplanes are thrown up, gravity pulls them down. This movement causes a difference of air pressure on the airplane wings, which then causes lift.
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