A fully loaded boeing aircraft has a mass of 5.4 × $10^5$ kg. Its total wing area is $500 \mathrm{~m}^2$.. It is in level flight with a speed of 1080 km/h. If the density of air  is $1.2 \mathrm{~kg} \mathrm{~m}^3$, the fractional increase in the speed of the air on the upper surface of the wing relative to the lower surface in percentage will be $\left(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2\right)$