D

#### dodo lee

**
1. The problem statement, all variables and given/known data**

this is a pulley system,

each masses are moving with acceleration with a1,a2,a3..

question)

1) How can i calculate the ratio a1:a2:a3 ?

2) How can i calculate the T(tenstion)?

2. Relevant equations

this is a pulley system,

each masses are moving with acceleration with a1,a2,a3..

question)

1) How can i calculate the ratio a1:a2:a3 ?

2) How can i calculate the T(tenstion)?

2. Relevant equations

a1,a2,a3: acceleration of each masses.

g=10m/s2

weight of all pulleys : 0

The mass 5kg does not spin.

**3. The attempt at a solution**

i think this is atwood system , but not simple, very complex.

help me...

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