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## Homework Statement

Cylindrical shape pulley ( m = 6 kg, R = 0.18 m) is rotating at a frequency f = 10 s

^{-1}. Due to constant torque it stops. Calculate the work done by the breaking force.

## Homework Equations

w = 2πf

## The Attempt at a Solution

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I can calculate the angular velocity:

w = 2πf = 62.8 rad/s

I don't know what to do now.