Use the Figure on the Below to Answer the Next

question 30

Multiple Choice

Use the figure on the below to answer the next problem. A mass m = 0.5 kg is hung from a pulley with moment of inertia I = 0.20kg.m² and radius R = 10cm. There is friction in the pulley. The mass is dropped from rest, and after 2s it traveled 4m.
-What is the angular acceleration of the pulley?

• A)2 rad/s²
• B)5 rad/s²
• C)10 rad/s²
• D)20 rad/s²
• E)40 rad/s²

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