Energy of Circular Orbits Video Lessons

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

FREE Expert Solution

Work done:

W=E=Ef-E0

Gravitational energy, E:

E=-GmmR+h

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Problem Details

A 6000 kg lunar lander is in orbit 20 km above the surface of the moon. It needs to move out to a 100 km 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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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.