The following questions refer to two people each with mass m that are sitting on the outside edge of a massless and frictionless merry-go-round with radius R that is spinning with an initial angular velocity wo. 1. (Objective 29) One of the two people now pulls themselves halfway in to the center of the merry-go-round so that their new radius of rotation is In terms of wo, (i.e. as a multiple of wo) how much faster is the merry-go-round now spinning? 2. (Objective 27) a) By what factor did the kinetic energy of the system change when the person pulled themselves toward the center of the merry-go-round? b) What force did the work to change that kinetic energy?

The following questions refer to two people each with mass m that are sitting on the outside edge of a massless and frictionless merry-go-round with radius R that is spinning with an initial angular velocity wo. 1. (Objective 29) One of the two people now pulls themselves halfway in to the center of the merry-go-round so that their new radius of rotation is In terms of wo, (i.e. as a multiple of wo) how much faster is the merry-go-round now spinning? 2. (Objective 27) a) By what factor did the kinetic energy of the system change when the person pulled themselves toward the center of the merry-go-round? b) What force did the work to change that kinetic energy?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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how transcribed image text Kepler (mass M) is playing at the local park. Due to some fantastically convenient urban planning. there are two merry-go-rounds (MGR) right next to each other. Kepler starts by sitting on the edge of the small MGR (mass 2M). rotating with it at an angular velocity of wo.. The large MGR (mass 4M) is currently stationary. The MGRs can be modeled as solid disks. 2.)If Kepler jumps off the small MGR at Velocity V. as shown in the drawing. what will the final angular velocity (we) of the small MGR be? Your answer should be in terms of V. R and wo only.
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