Question

An object in a circular orbit of radius around the earth splits into fragments such that one fragment escapes to infinity and the other settles into a new orbit of radius . Assume that the mechanical energy of the original object is conserved during the split. The ratio of the mass of the two fragments is:

Answer 1

Two satellite X and Y are moving in a circular orbit of radii r and 2r ... The ratio of their critical velocities are √2 : 1