If the mass of the earth is M, its radius is R and gravitational constant G, then the speed required to be given to a projectile so that it does not return to earth is

If the mass of the earth is M, its radius is R and gravitational const

1.	If the mass of the earth is M, its radius is R and gravitational constant G, then the speed required to be given to a projectile so that it does not return to earth is
Answer» `sqrt((GM)/R)` `sqrt((2GM)/R)` `sqrt((GM)/R)` `sqrt(GRM)` ANSWER :B