ber 10 A plane is in level flight and each of its wings has

Last updated: 6/14/2023

ber 10 A plane is in level flight and each of its wings has an area 20 m If the speed of air on upper and lower surfaces are 80 m s and 70 m s respectively then the mass of plane is density of air 1 kg m NCERT Pg 271 1 1500 kg 2 1700 kg 3 1650 kg 4 1750 kg