# ORBIT...

**Classical Mechanics**Level 3

For a satellite revolving around the earth in circular orbit which of the following is \(always\) true..
Given U is taken zero at infinity
Where

\(E\) is total energy of satellite

\(U\) is gravitational potential energy of satellite

\(K\) kinetic energy of satellite

- \(K = -E\)
- \(K = U/2\)
- \(K = -U/2\)
- \(E = U/2\)
- \(2U = E\)