Mathematics, 22.06.2019 10:00, ladybee05

Amodel airplane is shot up from a platform 1 foot above the ground with an initial upward velocity of 56 feet per second. the height of the airplane above ground after t seconds is given by the equation , where h is the height of the airplane in feet and t is the time in seconds after it is launched. approximately how long does it take the airplane to reach its maximum height?

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Amodel airplane is shot up from a platform 1 foot above the ground with an initial upward velocity o...