Physics 1 Final - Part 3 of 4
SAMPLE
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14. Torque & Rotational Dynamics / Net Torque & Sign of Torque / Problem 6
A very light bar of length 0.80 m has two cubes of mass 0.25 kg and 0.75 kg welded to its two ends. The bar attached at its center of mass to a fan motor revolves counterclockwise at a steady angular speed of 45 rpm. A torque τ applied to the bar causes it to stop rotating in 12 s. Calculate τ.
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