A 30-kg child is sitting 5.0 m from the center of a 500-kg merry-go-round that is rotating counter-clockwise at 1.70 rad/s. A braking mechanism provides an acceleration of magnitude 0.05 rad/s2. Determine the number of rotations to bring the merry-go-round to rest. What is the initial tangential velocity of the child?
A 30-kg child is sitting 5.0 m from the center of a 500-kg merry-go-round that is rotating counter-clockwise at 1.70 rad/s. A braking mechanism provides an acceleration of magnitude 0.05 rad/s2. Determine the number of rotations to bring the merry-go-round to rest. What is the initial tangential velocity of the child?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...
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A 30-kg child is sitting 5.0 m from the center of a 500-kg merry-go-round that is rotating counter-clockwise at 1.70 rad/s. A braking mechanism provides an acceleration of magnitude 0.05 rad/s2.
- Determine the number of rotations to bring the merry-go-round to rest.
- What is the initial tangential velocity of the child?
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