Two children (m = 28.0 kg each) stand opposite each other on the edge of a merry-go-round. The merry-go- round, which has a mass of 1.62 x 102 kg and a radius of 1.4 m, is spinning at a constant rate of 0.32 rev/s. Treat the two children and the merry-go-round as a system. (a) Calculate the angular momentum of the system, treating each child as a particle. (Give the magnitude.) kg · m2/s (b) Calculate the total kinetic energy of the system. (c) Both children walk half the distance toward the center of the merry-go-round. Calculate the final angular speed of the system. rad/s

Two children (m = 28.0 kg each) stand opposite each other on the edge of a merry-go-round. The merry-go- round, which has a mass of 1.62 x 102 kg and a radius of 1.4 m, is spinning at a constant rate of 0.32 rev/s. Treat the two children and the merry-go-round as a system. (a) Calculate the angular momentum of the system, treating each child as a particle. (Give the magnitude.) kg · m2/s (b) Calculate the total kinetic energy of the system. (c) Both children walk half the distance toward the center of the merry-go-round. Calculate the final angular speed of the system. rad/s

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 46P: A playground merry-go-round of radius R = 2.00 m has a moment of inertia I = 250 kg m2 and is...

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