A merry-go-round is composed of an inner disk of mass M1 radius R1 = 2 m and an outer disk of mass M2 = 2000 kg and radius R2 = 5 m. Three passengers, each of mass m = 70 kg (represented by solid black dots) sit along the outer edge of the merry-go-round as shown in the figure = 1000 kg and %D %3D below.

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
Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom
Section: Chapter Questions
Problem 9P
icon
Related questions
Question

R2 please solve again but write out all steps and reasoning. The second photo shows the work and answers.

QuestionR.2.
A merry-go-round is composed of an inner disk of mass M1
radius R1 = 2 m and an outer disk of mass M2
m. Three passengers, each of mass m
1000 kg and
2000 kg and radius R2 = 5
70 kg (represented by solid black
dots) sit along the outer edge of the merry-go-round as shown in the figure
below.
Rz
Figure 2: Setup for question 2
(a) What is the position vector of the center of mass of the merry-go-round
and its passengers?
(b) The motor of the merry-go-round begins to apply a torque of magnitude
T = 3200 Nm. How long does the merry-go-round take to reach an
angular velocity of w =
0.4 rad/s?
(c) What is the rotational kinetic energy of the merry-go-round and its
passengers at an angular velocity of w = 0.4 rad/s?
(d) As the merry-go-round rotates at w =
cuts out. If friction supplies a torque of magnitude Tf
many revolutions does the merry-go-round complete before coming to
0.4 rad/s the engine suddenly
250 Nm, how
rest?
Transcribed Image Text:QuestionR.2. A merry-go-round is composed of an inner disk of mass M1 radius R1 = 2 m and an outer disk of mass M2 m. Three passengers, each of mass m 1000 kg and 2000 kg and radius R2 = 5 70 kg (represented by solid black dots) sit along the outer edge of the merry-go-round as shown in the figure below. Rz Figure 2: Setup for question 2 (a) What is the position vector of the center of mass of the merry-go-round and its passengers? (b) The motor of the merry-go-round begins to apply a torque of magnitude T = 3200 Nm. How long does the merry-go-round take to reach an angular velocity of w = 0.4 rad/s? (c) What is the rotational kinetic energy of the merry-go-round and its passengers at an angular velocity of w = 0.4 rad/s? (d) As the merry-go-round rotates at w = cuts out. If friction supplies a torque of magnitude Tf many revolutions does the merry-go-round complete before coming to 0.4 rad/s the engine suddenly 250 Nm, how rest?
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Knowledge Booster
Helmholtz Free energy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers with Modern …
Physics for Scientists and Engineers with Modern …
Physics
ISBN:
9781337553292
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning