independence

if the earth was not rotating then answer wud have been a,b,c,d .. As earth is rotating , if u project along some latitude or direction then the rotational vel. will be superimposed (added) with the velocity u r projecting..
So a,b only

hey asish,

then have u wondered while deriving expression for escape velocity from earths surface wat u do?????

do u think u take rotation of earth into account........... [1]

ashish is right

we dont take rotation into acc while deriving escape vel cos the diff is very small

hey wat u r telling is ironical to me...........

u r saying that we don take into account as difference is very small..........

we don take it into account becoz we can't conserve enrgy in a non-inertial frame,so,we neglect the angular velocity and treat it as a inertial frame....................

so,the escape velocity is independent of latitude and direction of projection

so,concluding as such answer should be

a,b,c,d

"escape vel is independent of latitude , direction "

means velocity of rocket is same

but here it is launched by a meachanism

so relative velocity comes into play

analyse carefully ull get it