Question

if an aeroplane starts for patna to Kathmandu direct and other takes a stopage in the way for same journey which aeroplane under velocity and which under speed. give reason

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Answer 1

Answer:

Aeroplane can flu if the lift due to pressure difference on the lower and upper face of the wings of aeroplane is sufficient to overcome the weight of aeroplane. To get the required lift, the aeroplane runs for some distance on the runway before taking off. Due to streamline shape of the wings of the aeroplane , teh velocity of air streams on the upper faace of the wings of aeroplane becomes more than the velocity of air streams on the lower face of the wings of aeroplane. As a result of it, the pressure becomes less on upper face than on lower face of the wings of aeroplane. This pressure difference increases with the increase in speed of aeroplane . when aeroplane running on high way attains sufficient speed, it gets required lift to fly.

Answer 2

the plane with velocity will be the first plane which is without stopage

and the plane with speed will be secomd plane with stopage