Mechanical Energy of a Satellite in Circular Orbit

The mechanical energy of a satellite in circular orbit is solved for in terms of universal gravitational potential energy. And the velocity of the satellite is compared to escape velocity.
Want Lecture Notes? www.flippingphysics.com/satell... This is an AP Physics 1 topic.
0:00 Intro
0:14 Types of mechanical energy of a satellite
1:21 Solving for the velocity of a satellite in circular orbit
2:34 Solving for the mechanical energy of a satellite
3:31 Comparing satellite velocity to escape velocity
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[@matics6531]

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[@codybrogan4053]

So there are times when the total ME of the orbit is greater, and other times when it is less?

[@jamil5522]

Is the mechanical energy of a satellite in an elliptical orbit conserved? If not, is it because the force of gravity does work on the satellite since the angle between the force and displacement is not 90?

[@NezaR_StaR]

Thanks again

[@FlippingPhysics]

You are welcome.

[@universallawismyname7875]

another thing that could be added is that binding energy here (assumed that orbit is almost circular) is -ve of total energy i.e (-) [(-GMm)/2r] = +(GMm)/2r = - T.E. = +B.E. Here binding energy of satellite is different from binding energy of object at rest kept on surface of earth which is obvious

[@jamil5522]

Is this only for circular orbits?

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