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The mass of an aeroplane is 2 0 0 0 kg . At a certain speed in straight and level flight the ratio of lift

The mass of an aeroplane is 2000 kg. At a certain speed in straight and level flight the ratio of lift to drag of the complete aircraft is 7.5 to 1. If there is no force on the tail plane, what are the values of the lift, thrust and drag?

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