How Does Energy Transform in a Bungee Jump?

[hello478]

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
?

 

[berkeman]

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?

 

[hello478]

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

also what would happen if cords are dissipative??

 

[berkeman]

also what would happen if cords are dissipative??

That was my question to you!

 

[hello478]

That was my question to you!

well the answer to this is out of my capabilities... may you please tell me...?

 

[kuruman]

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.

 

[hello478]

How about doing some web research on your own? You have been given what to look for.

yeah i was gonna do that... haha its so funny and cute lol

 

[haruspex]

what would happen if cords are dissipative??

Start by stating what dissipation means. If you don't know, look it up.