The speeds of air flow on the upper and lower surfaces of a wing of an aeroplane are v_(1) and v_(2) respectively, It A is the cross sectional area of the wind and rho is the densit of air, then the upward lift is

The speeds of air flow on the upper and lower surfaces of a wing of an

1.	The speeds of air flow on the upper and lower surfaces of a wing of an aeroplane are v_(1) and v_(2) respectively, It A is the cross sectional area of the wind and rho is the densit of air, then the upward lift is
Answer» `1//2rho A (V_(1)-V_(2))` `1//2 RHO A (V_(1)+V_(2))` `1//2rho A (V_(1)^(2)-V_(2)^(2))` `1//2 rho A (V_(1)^(2)+V_(2)^(2))` ANSWER :C