A piolt files due East from A to B. The velocity of the aeroplane in still air is vand the velocity of air relative to ground is u. The distance between A andB is l. Calculate the time for a round trip if air velocity is due to East. In still air time for round trip is t_(0)

A piolt files due East from A to B. The velocity of the aeroplane in s

1.	A piolt files due East from A to B. The velocity of the aeroplane in still air is vand the velocity of air relative to ground is u. The distance between A andB is l. Calculate the time for a round trip if air velocity is due to East. In still air time for round trip is t_(0)
Answer» `(t_(0))/(1-(U^(2))/(v^(2)))` `(t_(0))/(1+(u^(2))/(v^(2)))` `(2t_(0))/(1+(u^(2))/(v^(2)))` `(2t_(0))/(1-(u^(2))/(v^(2)))` Answer :A