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Answers posted by humahudahura123
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The angle of elevation of a jet plane from a point A on the ground is $60^{\circ}$ After a flight of $30$ seconds , the angle of elevation changes to $30^{\circ}$. If the jet plane is flying at a constant height of $3600\sqrt 3\;m$, then the speeds of the jet plane is _______
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Jun 26, 2018
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