- #1

TBBTs

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## Homework Statement

http://imgur.com/MaT4N

## Homework Equations

Torque = Fr

## The Attempt at a Solution

1) I tried

m2 g r - m1 g r = 1/2 M r^2 * (acceleration / r)

didn't work

2)I tried replace the moment of inertia equation to above equation,still didn't work