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A small plane is taxiing on the runway at a speed of 4.0 m/s. It then...

A small plane is taxiing on the runway at a speed of 4.0 m/s. It then begins accelerating for take-off at a uniform rate of 12 m/s2 and it's wheels leave the ground after 9.0s. How far did it travel from the point at which it started accelerating until it becomes airbone?

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