AP and TS EAMCET Engineering Model Paper 13

The velocity of air over the upper surface of the wing of an aeroplane is 40 ms‌−1 and that of the lower surface is 30 ms‌−1. If the area of the wing is 5m‌2 and the mass of the wing is 300 kg, the net force acting on the wing is (dair=1.3kg m−3&‌g=10ms−2)