The force that impels an orbiting object out of its orbit is not a single, specific force. Instead, it's a change in the balance of forces acting on the object.

Here's why:

* Gravity is the primary force keeping an object in orbit. The gravitational pull between the orbiting object and the central body (like a planet or star) provides the centripetal force needed to maintain the circular or elliptical path.

* Any force that disrupts this balance can push the object out of orbit. These forces could include:

* Another gravitational force: The gravitational pull of a large passing object (like another planet or a moon) could alter the orbiting object's path.

* Friction: Atmospheric drag can slow down an object in low Earth orbit, causing it to lose altitude and eventually fall back to Earth.

* Rocket thrust: A rocket engine firing in the opposite direction of the object's orbital velocity can change its speed and trajectory, potentially causing it to leave its orbit.

* Solar wind pressure: For objects in very distant orbits, the pressure from the solar wind can cause a small but significant force over time, potentially changing the object's trajectory.

In summary, there isn't a single "force" that kicks an object out of orbit. It's a change in the balance of forces acting on the object that leads to a change in its path and ultimately, a departure from its original orbit.