- #1
ilper
- 58
- 2
A body on a circular orbit in the field of a central force (satellites in gravity field of Earth; a charge in a magnetic field) is subjected to a force which is always perpendicular to its initial velocity v, hence in a time period dt it acquires an additional velocity dv, which is also perpendicular to v. Adding this two immediately gives a new velocity greater than the initial (a simple geometric property). As the velocity changes the body should radiate energy (surely for the charge in magnetic field). Does this energy release compensate exactly the increase in velocity so it stays constant?
If so, what radiates a body in gravitational field?
If so, what radiates a body in gravitational field?