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?

Question

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

Elena · Answer

km -> m a=v²/2s s=at²/2 t=sqrt(2s/a)

Tirth · Answer

11 s