Answer to Question #149054 in Physics for Melanie Belandres

Question #149054

2. An airplane travels 500 m down the runway before taking off. If it starts from rest, moves with constant acceleration, and becomes airborne in 20 s, with what velocity does it take off?

Expert's answer

"v=at=\\frac{2s}{t^2}t=\\frac{2s}{t}\\\\v=\\frac{2(500)}{20}=50\\frac{m}{s}"

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