Stretching of string (and tearing of string)

Jul 2017
27
0
Also, it is mentioned this:

d2l/dt2 = (F/2) / (ρdl) = F/(2m)

m - mass

If that can actually help for better explanation of the context...
 
Apr 2015
1,159
305
Somerset, England
Looks like average force to me as I said.

Or if you prefer average acceleration since the acceleration varies from zero to max in a vibrating string.
 
Jul 2017
27
0
Looks like average force to me as I said.

Or if you prefer average acceleration since the acceleration varies from zero to max in a vibrating string.
So:
1) the equation is form of F=ma;
2) "2" stays for the fact that the maximum stress is twice the average stress.

Right?
 
Apr 2015
1,159
305
Somerset, England
Works for me.

For your information the (strain) energy involved in stretching a string

E = 1/2 Max stress x strain = work done in raising the stress from zero to max. This is also = 1/2 Load x extension


I also think that the connection to waves is that your article must be about vibrating strings.
It would not involve Newton's Second Law for static stretching.
 
Last edited:
Jul 2017
27
0
Works for me.

For your information the (strain) energy involved in stretching a string

E = 1/2 Max stress x strain = work done in raising the stress from zero to max. This is also = 1/2 Load x extension


I also think that the connection to waves is that your article must be about vibrating strings.
It would not involve Newton's Second Law for static stretching.
That's right!

I am re-examining the text now- it's all about vibrating string, not about static straining.

P.S. Please, have a look at your private inbox.
 
Apr 2015
1,159
305
Somerset, England
Yes I saw the message, thank you.

We should keep the Physics in open forum for the benefit of all.

But I saw that you were translating this from another difficult language.

Your English is very good so I salute you for knowing more than one language as well as some Physics.
 
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