How Does Energy Transform in a Bungee Jump?

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    Bungee Energy
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Homework Help Overview

The discussion revolves around the energy transformations involved in a bungee jump, focusing on gravitational potential energy (gpe), kinetic energy (ke), and elastic energy. Participants are exploring how these forms of energy change throughout the jump and the implications of using dissipative bungee cords.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to categorize energy states at various points during the jump, questioning the definitions of terms like "lower middle." There is also a discussion about the effects of dissipative forces in bungee cords and how they might alter energy transformations.

Discussion Status

The conversation is ongoing, with participants sharing their thoughts and seeking clarification on energy concepts. Some guidance has been offered regarding the need for a more quantitative understanding of the problem, and there is an acknowledgment of the complexity introduced by dissipative forces.

Contextual Notes

There is a noted lack of specific definitions and quantitative details in the problem statement, which participants are trying to address. The nature of bungee cords as dissipative elements is also under consideration, raising questions about how this affects energy transformations.

hello478
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Homework Statement
describe changes of energy as a bungee jumper jumps of a cliff with an elastic cord...
Relevant Equations
energy equations
please correct me if im wrong...

at top
highest gpe
ke = 0
elastic energy = 0

upper middle
0=elastic energy
ke < gpe

middle
ke = gpe

lower middle
ke>gpe

bottom
ep = maximum
gpe=ke = 0


rebound
?
 
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I kinda' think you're right-ish with what you wrote, but it's hard to say without a much more quantitative statement of the problem (like what is "lower middle"?).

But it also depends on the full statement of the problem. Bungee cords are dissipative, as opposed to non-dissipative springs that are only stretched within their elastic range. Can you say how this would affect the situation?
 
berkeman said:
I kinda' think you're right-ish with what you wrote, but it's hard to say without a much more quantitative statement of the problem (like what is "lower middle"?).

But it also depends on the full statement of the problem. Bungee cords are dissipative, as opposed to non-dissipative springs that are only stretched within their elastic range. Can you say how this would affect the situation?
lower middle is a little bit down from the middle

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also what would happen if cords are dissipative??
 
hello478 said:
also what would happen if cords are dissipative??
That was my question to you! :wink:
 
berkeman said:
That was my question to you! :wink:
well the answer to this is out of my capabilities... may you please tell me...?👁️👁️
 
hello478 said:
well the answer to this is out of my capabilities... may you please tell me...?👁️👁️
How about doing some web research on your own? You have been given what to look for.
 
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kuruman said:
How about doing some web research on your own? You have been given what to look for.
yeah i was gonna do that... :bow: haha its so funny and cute lol
 
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hello478 said:
what would happen if cords are dissipative??
Start by stating what dissipation means. If you don't know, look it up.
 
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