A Bucket of Water with Total Mass 23 Kg Is

question 25

Multiple Choice

A bucket of water with total mass 23 kg is attached to a rope,which in turn is wound around a 0.050-m radius cylinder at the top of a well.The bucket is raised to the top of the well and released.The bucket is moving with a speed of 6.0 m/s upon hitting the water surface in the well.What is the angular speed of the cylinder at this instant?

• A) 39 rad/s
• B) 79 rad/s
• C) 120 rad/s
• D) 160 rad/s

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