# Minimum Speed for Water in a Bucket Revolving in a Vertical Circle

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What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.

Want Lecture Notes? This is an AP Physics 1 topic.

Content Times:

0:13 The demonstration

0:35 Understanding the problem

1:04 Where do we draw the Free Body Diagram

2:06 Summing the forces

3:04 What happens at the minimum angular speed

3:53 Why the force of tension is zero

4:41 Solving the problem

Next Video: The Right Hand Rule for Angular Velocity and Angular Displacement

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Previous Video: Analyzing Water in a Bucket Revolving in a Vertical Circle

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