Question a boeing 787 is initially moving down the runway, Ask an Expert

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Question: A Boeing 787 is initially moving down the runway at 3.5 m/s preparing for takeoff. The pilot pulls on the throttle so that the engines give the plane a constant acceleration of 1.7 m/s2. The plane then travels a distance of 1600 m down the runway before lifting off.

Part A: How long does it take from the application of the acceleration until the plane lifts off, becoming airborne?

Any help I can get on this question is greatly appreciated! I'm not too familiar with this question.

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