A satellite (mass 1100 kg) is sent into a circular orbit 200 km above the surface of the planet Mercury (the mass of planet Mercury is 3.3 x 10^23...

A satellite (mass 1100 kg) is sent into a circular orbit 200 km above the surface of the planet Mercury (the mass of planet Mercury is 3.3 x 10^23 kg). In this circular orbit, the satellite has a constant speed (v=2.89 km/s). What is the direction of the acceleration of the satellite (if any), and what would happen to the acceleration (if there is any) if the speed was instead a factor of two larger?