# Constrained pully system

1. Apr 7, 2015

### AbhinavJ

1. The problem statement, all variables and given/known data
A,B,C are of mass one kg each, while D,E are massless pulleys.
We need to find Tension in string, acceleration of A,B,C

2. Relevant equations

T-mg=ma

3. 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

2. Apr 7, 2015

3. Apr 7, 2015

### haruspex

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

4. Apr 7, 2015

### AbhinavJ

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

5. Apr 7, 2015

### haruspex

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.