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Physics

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An aircraft starts from rest and accelerates at 42.5m/s^2 until it takes off at the end of the runway. How long will it take the aircraft to travel down the 2.6km runway?
Answer is 11 seconds

  • Physics -

    km -> m
    a=v²/2s
    s=at²/2
    t=sqrt(2s/a)

  • Physics -

    11 s

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