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## Homework Statement

A system contains two pulleys, over the first pulley there is mass 3, m_3, on one end of the rope. the other end of that rope is connected to the second pully. Hung on the second pulley are mass 2, m_2, and mass 1, m_1. Find the acceleration constraint in terms of a_1 and the tension in the string of the second pulley.

## Homework Equations

ma=Fnet

## The Attempt at a Solution

the change in the string over pulley 1 causes a_3=.5*a_2 and a_2=a_1 (not sure?)

so a_1=2a_3?