For an object moving in a uniform circular motion, the centripetal acceleration is
It is important to note that this centripetal acceleration is not angular acceleration. Angular acceleration is used in a rotational body while what we are doing here involves an object moving in a circle.
A body of mass m would experience a force of
Earth’s gravitational acceleration
An object moving in a circular motion around Earth experiences a centripetal force. Since this force equals to the weight,
We can see that the velocity of an object moving around Earth depends only on its distance from the Earth’s centre(radius).