The orbital velocity of an artificial in a circular orbit justabove the earth's surface v. For a satellite orbiting at an altitude of half the earth's radius the orbital velocity is

The orbital velocity of an artificial in a circular orbit justabove th

1.	The orbital velocity of an artificial in a circular orbit justabove the earth's surface v. For a satellite orbiting at an altitude of half the earth's radius the orbital velocity is
Answer» `(3)/(2)` v `sqrt((3)/(2))` v `sqrt((2)/(3))` v `(2)/(3)` v Solution :Since, ORBITAL velocity `v=sqrt((GM)/(R))or v prop (1)/(sqrt(r))` `(v_(2))/(v_(1))=sqrt((r_(1))/(r_(2)))` `:. v_(2)=sqrt((r_(1))/(r_(2))).v=sqrt((R)/(R+(R)/(2))).v=sqrt((2)/(3))v`.