Answer:
the acceleration experienced by a pilot flying in a circle is 126m/s²
Step-by-step explanation:
Given that, 
Speed of pilot, v = 475 m/s 
Radius of the circle, r = 1790 m 
If the pilot is moving in a circular path, it will experience a centripetal acceleration. It is given by the formula as :
The angular acceleration 
a= ω²r 
= v²/r. 
Where v is tangential velocity and r is the radius. 
a = v²/r.

So, the acceleration experienced by a pilot flying in a circle is 126m/s²