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An aeroplane flying horizontally 1 km above the ground is observed at an elevation of 60∘ and after 10 seconds the elevation is observed to be 30∘. The uniform speed of the aeroplane in km/h is |
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Answer» An aeroplane flying horizontally 1 km above the ground is observed at an elevation of 60∘ and after 10 seconds the elevation is observed to be 30∘. The uniform speed of the aeroplane in km/h is |
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