A satellite is transferred from a low-Earth orbit just above the surface to a much higher circular orbit. Which statement about its orbital speed is correct?
(a) It remains the same because the satellite’s mass cancels out of the speed equation.
(b) It increases because the time taken to complete one orbit is longer, so the satellite must move faster along the larger path.
(c) It decreases because the orbital radius becomes larger.
(d) It increases because a smaller centripetal acceleration is required in the higher orbit.