How Do You Calculate Tension and Acceleration in a Constrained Pulley System?

[AbhinavJ]

Homework Statement

A,B,C are of mass one kg each, while D,E are massless pulleys.
https://docs.google.com/file/d/0B0FIIKckKOcKN2JxcS1DYldaX0U/edit?usp=docslist_api
We need to find Tension in string, acceleration of A,B,C

Homework Equations

T-mg=ma

The Attempt at a Solution

I tried getting tension and got T=2T, which gives T=0, which is not the answer. Thanks in advance

 

[AbhinavJ]

The problem image
https://docs.google.com/file/d/0B0FIIKckKOcKN2JxcS1DYldaX0U/edit?usp=docslist_api

 

[haruspex]

Homework Statement

A,B,C are of mass one kg each, while D,E are massless pulleys.
https://docs.google.com/file/d/0B0FIIKckKOcKN2JxcS1DYldaX0U/edit?usp=docslist_api
We need to find Tension in string, acceleration of A,B,C

Homework Equations

T-mg=ma

The Attempt at a Solution

I tried getting tension and got T=2T, which gives T=0, which is not the answer. Thanks in advance

Sounds to me as though you assumed no acceleration.
Can't tell where you are wrong if you don't post your working.

 

[AbhinavJ]

Sounds to me as though you assumed no acceleration.
Can't tell where you are wrong if you don't post your working.

I actually couldn't get anything, any hint on which I can work on?

 

[haruspex]

I actually couldn't get anything, any hint on which I can work on?

You wrote that you did some work and got T=2T. Please post that work. You must show some attempt, even if it is just some thoughts.
Have you drawn a free body diagram for each pulley? Each of those should give you an equation, though some may be uninteresting because they involve unknown forces from outside the system.