A satellite is in circular orbit above the Earth at an altitude of 2000 km. What is the orbital speed of the satellite? what is the equation i need to use

Answer 1

GM/(Re +h)^2 = V^2/(Re + h)
or
G M = V^2*(Re + h)

Solve for V

G = universal constant of gravity
Re = Earth radius = 6370 km
h = 2000 km
M = Earth's mass

Answer 2

I did that and I am still getting the wrong answers, do I have to convert anything?

Answer 3

Re and h should be in meters if G is in N*m^2/kg^2

M must be in kg. Are you sure you used the correct values for G and M?

You will get the answer in m/s if you do it right.