contestada

A Cessna aircraft has a lift off speed of 147 km/h. What minimum constant acceleration does this require if the aircraft is to be airborne after a take off run of 208 m?

Respuesta :

Answer:

The acceleration is  [tex]a =51945 \ km/h^2[/tex]

Explanation:

From the question we are told that

   The lift up speed is  [tex]v = 147 \ km/h[/tex]

    The distance covered for the take off run is [tex]s = 208 m = 0.208 \ km[/tex]

Generally from kinematic equation we have that

      [tex]v^2 = u^2 + 2as[/tex]

Here u is the initial  speed of the aircraft with value 0 m/ s give that the aircraft started from rest

So  

    [tex]147^2 = 0^2 + 2* a* 0.208[/tex]

=>  [tex]a =51945 \ km/h^2[/tex]