Two satellite of masses 40kg, 50kg are revolving around earth in different circular orbits of radii `r_(1),r_(2)` such that their kinetic energies are equal. The ratio of `r_(1),r_(2)` is

Two satellite of masses 400 kg,500kg are revolving around earth in different circular orbits of radii r_(1),r_(2) such that their kinetic energies are equal. The ratio of r_(1) to r_(2) is

Two satellites of masses 50 kg and 150 kg revolve around the earth in circular orbits of radii 4R and 9R respectively where R is the radius of the earth. The speed of the two satellites will be in the ratio ?

Two satellites of same mass are orbiting round the earth at heights of r_1 and r_2 from the centre of earth. Their kinetic energies are in the ratio of :

Two satellites of same mass are orbiting round the earth at heights of r_1 and r_2 from the centre of earth. Their kinetic energies are in the ratio of :

Two satellite fo masses m and 4m orbit the earth in circular orbits of radii 4r and r respectively. The ratio of their orbital speed is