The lift ?on an airplane wing at takeoff varies jointly as the square of the speed ?of the plane and the area ?of its wings. A plane with a wing area of 500ft2traveling at 50mi/h experiences a lift of 1700 lb. How much lift would a plane with a wing area of 600 ft2traveling at 40 mi/h experience?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
Problem 12P
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The lift ?on an airplane wing at takeoff varies jointly as the square of the speed ?of the plane and the area ?of its wings. A plane with a wing area of 500ft2traveling at 50mi/h experiences a lift of 1700 lb. How much lift would a plane with a wing area of 600 ft2traveling at 40 mi/h experience?

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