Question

A plane flies horizontally at constant ground speed v=720km/h. The pilot is informed by an air traffic controller that he must immediately change his direction of flight while keeping the same altitude. The pilot performs a turning maneuver by rolling the plane to a banked position. Then she increases the airspeed in Δv to keep the plane at constant altitude. As a result, the plane describes an arc of radius R=8km. Find the increase in airspeed Δv in km/h. Assume that the lift force is proportional to the square of the speed and that it is always perpendicular to the plane of the wings.

Answer 1

@chmvijay @acid any ideas on this ?

Answer 2

:(

Answer 3

Okay cool and @acid you ?

Answer 4

i have done it,i will tell u,but are u sure on the helium question,i only have one attempt remaining

Answer 5

yup it is correct i was also on one attempt ! :)

Answer 6

hey @acid its 100% sure

Answer 7

i gurantee you LOL:)

Answer 8

yup it is !

Answer 9

and @acid answer to this question ?

Answer 10

yaa please answer to this question

Answer 11

hey acid be care full with bases they may neutralize you LOL:) just kidding

Answer 12

listening @acid the answer ?

Answer 13

thanks men,though it took me a while i have done it the answer is 56.4

Answer 14

i dont want answer can u tell how did you do that with figure

Answer 15

yo thnks men you are awesome !!! go and solve more questions i will remain in touch !!!

Answer 16

and please explain the answer too !!

Answer 17

we should totally help each other out,so the way to do it is realizing that as the plane banks tilt,creating a horizontal and vertical tilt so Lsintheta = mv^2/r,and the vertical lcostheta=mg

Answer 18

any questions