A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 280 kg, is spinning at 16 rpm. John runs tangent to the merry- go-round at 5.4 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg. Part A What is the merry-go-round's frequency, in rpm, after John jumps on? Express your answer in revolutions per minute to two significant figures. W = Submit ΑΣΦ Request Answer ? rpm

A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round, which can be modeled as a disk with a mass of 280 kg, is spinning at 16 rpm. John runs tangent to the merry- go-round at 5.4 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 30 kg. Part A What is the merry-go-round's frequency, in rpm, after John jumps on? Express your answer in revolutions per minute to two significant figures. W = Submit ΑΣΦ Request Answer ? rpm

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 47P: A propeller consists of two blades each 3.0 m in length and mass 120 kg each. The propeller can be...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

A merry-go-round is a common piece of playground equipment. A
3.0-m-diameter merry-go-round, which can be modeled as a disk with a
mass of 280 kg, is spinning at 16 rpm. John runs tangent to the merry-
go-round at 5.4 m/s, in the same direction that it is turning, and jumps
onto the outer edge. John's mass is 30 kg.
Part A
What is the merry-go-round's frequency, in rpm, after John jumps on?
Express your answer in revolutions per minute to two significant figures.
ΠΑΠΑΣΦ
W=
Submit
Request Answer
rpm

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