A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a radius of 1.46 m. A child applies a force 49.5 N tangentially to the edge of the disk to start it from rest. What is the kinetic energy of the merry-go-round disk (in J) after 3.05 s?

A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a radius of 1.46 m. A child applies a force 49.5 N tangentially to the edge of the disk to start it from rest. What is the kinetic energy of the merry-go-round disk (in J) after 3.05 s?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section: Chapter Questions

Problem 31PQ: Sophia is playing with a set of wooden toys, rolling them offthe table and onto the floor. One of...

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A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a radius of 1.46 m. A child applies a force 49.5 N tangentially to the edge of the disk to start it from
rest. What is the kinetic energy of the merry-go-round disk (in J) after 3.05 s?

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