An aeroplane flies along a straight line from `A` to `B` with a speed `v_(0)` and back again. A steady wind `v` is blowing if `AB=l` then
a)total time for the trip is `(2v_(0)l)/(v_(0)^(2)-v^(2))` if wind blows along the line `AB`
b)total time for the trip is `2l/sqrt(v_(0)^(2)-v^(2))`,if wind blows perpendicular to the line `AB`
c)total time for the trip decrease because of the presence of wind
d)total time for the trip increase because of the presence of wind

Options

A. `T_(w)=T_(0)`
B. `T_(w) gt T_(0)`
C. `T_(w) lt T_(0)`
D. `T_(w)=2 T_(0)`

Answer

B