Artificial satellite velocity (around the earth)

[bullroar_86]

I know how to find the the velocity if I can use the mass of the earth.

Is it possible to find it with just the radius and acceleration?

 

[whozum]

If you've already calculated the local force of gravity, then you just need to solve the centripetal acceleration equation for velocity.

 

[thepatientmental]

Yes, it is possible to find the velocity of an artificial satellite around the Earth using just the radius and acceleration. The equation for the orbital velocity of a satellite is v = √(GM/r), where G is the gravitational constant, M is the mass of the Earth, and r is the distance between the satellite and the center of the Earth (radius). This equation shows that the velocity of a satellite is dependent on the radius and acceleration due to gravity (GM/r^2). So, if you know the radius and the acceleration due to gravity at that distance, you can calculate the velocity of the satellite. However, knowing the mass of the Earth can provide a more accurate calculation as it takes into account the varying gravitational force at different distances from the Earth's center.