106
Asish Mahapatra
·2009-06-23 23:04:02
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
1
JOHNCENA IS BACK
·2009-06-24 02:47:43
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]
9
Celestine preetham
·2009-06-24 07:15:11
ashish is right
we dont take rotation into acc while deriving escape vel cos the diff is very small
1
JOHNCENA IS BACK
·2009-06-24 07:28:14
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
1
JOHNCENA IS BACK
·2009-06-24 07:30:38
so,concluding as such answer should be
a,b,c,d
9
Celestine preetham
·2009-06-24 07:35:14
"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