What is the period of orbit for a space station placed 30 000km from the Earth?

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Homework Help Overview

The problem involves determining the orbital period of a space station located 30,000 km from the Earth. The original poster expresses uncertainty about the relevant equations and the correct radius to use in their calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to use the equation T = 2π but questions whether to use the radius of the Earth or the given radius of 30,000 km. They also express confusion about their previous calculations related to the station's rotation period.

Discussion Status

The discussion includes clarifications about posting etiquette and addresses the original poster's confusion regarding the problem setup. Participants have not reached a consensus on the correct approach or interpretation of the radius.

Contextual Notes

The original poster mentions a previous calculation related to the rotation of the space station, which may not be directly relevant to the current question. There is also a note about avoiding double posting in the forum.

gemini2904
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Homework Statement



A space station is placed in an orbit of radius 30 000km. What is the period of the station's orbit around the Earth?

(I previously worked out the period of rotation of the space station as 22 secs but I didn't think it was relevant to this part of the question besides it's probably wrong anyway! For that question the wheel shaped station, with radius 20m, rotating around a central hub. astronaunt standing on rim head facing forward , feels force on feet, to stimulate 1/6 of the magnitude of gravity on earth)?

2. Homework Equations

I was looking to use T = 2pi

but Instead of Rearth do I need to use the radius 30 000? Or have I got the wrong equation again??

Many thanks,

Claire

3. The Attempt at a Solution

T = 6 mins edit; opps i mean 84mins I don't understand how the radius of 30000 fits in, should I take it as distance?
1. Homework Statement


Homework Equations





The Attempt at a Solution


 
Last edited:
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Oh right sorry - I didn't realize, I just wanted to edge my bets!
 
Actually, you "hedge" your bets. But double posting is not the way to do it.
 
Thank's for clearing that up, Dick!
 

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