Posted by please help!!!! on .
You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, which acts perpendicular to the wings. When the plane is flying level, the upward lift force exactly balances the downward weight force. Since O'Hare is one of the busiest airports in the world, you are not surprised when the captain announces that the flight is in a holding pattern due to the heavy traffic. He informs the passengers that the plane will be flying in a circle of radius 5 mi at a speed of 440 mph and an altitude of 24,000 ft. From the safety information card, you know that the total length of the wingspan of the plane is 275 ft. From this information, estimate the banking angle of the plane relative to the horizontal.

physics 
bobpursley,
and of course assume no friction :)
tanTheta=v^2/gr
change v to m/s, altitude to m, radius to meters 
physics 
please check my answer if it is correct,
can you explain your answer more please.