Hi, I am stuck on this question:
A satellite of mass 1200 kg is in orbit around the Earth at a distance of 22000 km from the centre of the Earth.
Calculate the magnitude of the centripetal acceleration of the satellite at this distance.
The Attempt at a Solution
so v= square root of GM/r
v= square root of 6.67 x10^-11 x 6.0 x 10^24/ 22000 x 10^3
this gave me=
4.266x 10^-3 m/s but the answer at the back is 0.83 m/s^2, can someone please explain to where i went wrong.