44. Rigid rods of negligible mass lying along the y axis con- nect three particles (Fig. P10.44). The system rotates about the x axis with an angular speed of 2.00 rad/s Find (a) the moment of iner- tia about the x axis, (b) the total rotational kinetic energy 4.00 k kgy-3.00 m evaluated from 5l0, (c) the tangential speed of each particle, and (d) the total kinetic energy evaluated from 3.00 k y-_ 2.00 ml kg Σ 1 miui2. (e) Compare the answers for kinetic energy in Figure P10.44 parts (a) and (b)

44. Rigid rods of negligible mass lying along the y axis con- nect three particles (Fig. P10.44). The system rotates about the x axis with an angular speed of 2.00 rad/s Find (a) the moment of iner- tia about the x axis, (b) the total rotational kinetic energy 4.00 k kgy-3.00 m evaluated from 5l0, (c) the tangential speed of each particle, and (d) the total kinetic energy evaluated from 3.00 k y-_ 2.00 ml kg Σ 1 miui2. (e) Compare the answers for kinetic energy in Figure P10.44 parts (a) and (b)

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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Question

44. Rigid rods of negligible mass lying along the y axis con-
nect three particles (Fig. P10.44). The system rotates
about the x axis with an
angular speed of 2.00 rad/s
Find (a) the moment of iner-
tia about the x axis, (b) the
total rotational kinetic energy
4.00 k
kgy-3.00 m
evaluated from 5l0, (c) the
tangential speed of each
particle, and (d) the total
kinetic energy evaluated from 3.00 k
y-_ 2.00 ml
kg
Σ 1 miui2. (e) Compare the
answers for kinetic energy in
Figure P10.44
parts (a) and (b)

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A merry-go-round (treat as uniform disk) with mass of 65 kg and outer radius of 3.1meters, is rotating at 6 rad/s. An initially stationary child grabs on to the outer edgeand thereafter, moves with the merry-go-round. The child has mass 25 kg. What isthe final angular velocity of the merry-go-round in rad/s?
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