A 45 N brick is suspended by a light str...

A 45 N brick is suspended by a light string from a 2.0 kg pulley. The brick is released from rest and falls to the floor below as the pulley rotates through 5.0 rad. The pulley may be considered a solid disk of radius 1.5 m. What is the angular speed of the pulley?

17 rad/s

8.1 rad/s

15 rad/s

7.3 rad/s

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