Putting an item into orbit. Help

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Homework Help Overview

The discussion revolves around calculating the velocity required to place a 14.5 kg item into orbit around the Earth at an elevation of 100 km. The problem involves concepts from gravitational physics and orbital mechanics.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster expresses uncertainty about how to approach the problem and requests assistance. Some participants suggest considering the conservation of energy as a fundamental principle relevant to the situation.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. While some guidance has been offered regarding the conservation of energy, there is no explicit consensus or resolution at this time.

Contextual Notes

The original poster indicates a lack of understanding and preparation for the problem, which may affect the discussion's progression. There is also mention of potentially irrelevant formulas provided by the poster.

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Homework Statement


No idea how to do this honestly, but here it is. Hopefully someone can just work this out and I can learn from that. Calculate the velocity needed to place a 14.5kg item (its a turkey but whatever lol) into orbit around the Earth at an elevation of 100km. The radius of the Earth is 6500km. Like I said I'm not sure to how to do this and I need to know.


Homework Equations


I was given formulas ( These might have nothing to do with it, beware) Fc=mu2/r
ac=4pi2rf2


The Attempt at a Solution


 
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The point is I don't know how to do it, I have no work. Obviously I'm not going to get any help so someone just delete this...
 
In general you know that there will need to be a conservation of energy to accomplish this don't you?

So doesn't the sum of the PE at surface + KE initial = PE at orbit + KE of object in orbit?
 

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