A satellite is moving in a low nearly circular orbit around the earth. Its radius is roughly equal to that of the earth's radius Re. By firing rockets attached to it, its speed is instantaneously increased in the direction of its motion so that it become 23 times larger. Due to this the farthest distance from the centre of the earth that the satellite reaches is R. Value of R is :
a. 4Re
b. 2.5Re
c. 3Re
d. 2Re