Will the tension be same?

  • Thread starter prakhargupta3301
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    Tension
In summary, the conversation is about determining whether T and T2 are the same, with the solution being that T2=T and the main point being that when solving for multiple unknowns, one must draw separate free-body diagrams for each unknown.
  • #1

Homework Statement


In the figures:[/B]
uOhajQ.png

upload_2018-6-29_13-5-14.png

Are T and T2 same?

Homework Equations


This is just a yes and no answer[/B]


The Attempt at a Solution


I don't want anything solved. I've actually solved it already and have gotten T2= T
NOTE( T≠T1 here)
 

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  • #2
If you have solved it, why are you asking?
 
  • #3
I have solved it but I'm frequently paranoid regarding the errors I make while solving questions. So wanted to make sure.
That's why I needed your help.
 
  • #4
I've just suggested this method over on your other thread.

You can erase the 10kg mass and the 200n force and apply f=ma to what's left.
 
  • #5
CWatters said:
I've just suggested this method over on your other thread.

You can erase the 10kg mass and the 200n force and apply f=ma to what's left.
Well, this is quite obviously equivalent. The main point is that if you have a set of ##N## unknowns you need to draw the free-body diagrams of ##N## different systems where those unknowns (and no other unknowns) appear. In this case, you can draw the fbd of the full system (which in both cases result in the same) and then choose whether or not to draw the FBD of the latter part or the rightmost box. Since ##T_1## is internal it will not appear in any of those FBDs and you end up with two unknowns, ##T_2## and ##a## or (in the first case) ##T## and ##a##.
 

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