Energy of Circular Orbits Video Lessons

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Problem: A 6000kg lunar lander is in orbit 20km above the surface of the moon. It needs to move out to a 100km -high orbit in order to link up with the mother ship that will take the astronauts home.How much work must the thrusters do?

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This problem involves the energy of circular orbits. We are required to determine the difference in energy between two circular orbits.

The energy of a circular orbit:

E=-GMm2(R+h)

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Problem Details

A 6000kg lunar lander is in orbit 20km above the surface of the moon. It needs to move out to a 100km -high orbit in order to link up with the mother ship that will take the astronauts home.

How much work must the thrusters do?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Energy of Circular Orbits concept. You can view video lessons to learn Energy of Circular Orbits. Or if you need more Energy of Circular Orbits practice, you can also practice Energy of Circular Orbits practice problems.