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An aeroplane is preparing to land from an initial height of 2000 meters. Its initial velocity...

An aeroplane is preparing to land from an initial height of 2000 meters. Its initial velocity is 200 m s and the angle of decent is −30◦ . If the plane is able to apply a constant horizontal deceleration a0, what does a0 need to be in order for the plane to reach a horizontal velocity of 75 m s upon touchdown (assume there is no additional vertical acceleration outside of gravity)?

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