physics

Q- The distance from A to B is l. A plane flies at constant speed v relative to air along straight line from A to B & then from B to A. Calculate total time taken for his round trip, if a wind is flowing in three directions of wind velocity (u)-
I)along the line ATO B
II)perpendicular to line AB
III) At an angle Ѳ to AB

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asked by mamta

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