at t= 2 sec is: C. 60 D. 92 E.112 Q.16: At t = 0, a wheel (Jac) rotating about a fixed axis at a constant angular acceleration has an angular speed of 2 rad/s. Two seconds later it has turned through 8 complete revolutions ( The magnitude of the angular acceleration (in rad/s) of this wheel is: [Hint: one revolution equals 2n rad). A. 2.65 B. 50.0 C. 13.7 D. 23.1 E. Zero Q.17: The disc in the adjacent figure has radius R and rotates (4) with an angular axle ( ) passing through point o and perpendicular represent the angular
at t= 2 sec is: C. 60 D. 92 E.112 Q.16: At t = 0, a wheel (Jac) rotating about a fixed axis at a constant angular acceleration has an angular speed of 2 rad/s. Two seconds later it has turned through 8 complete revolutions ( The magnitude of the angular acceleration (in rad/s) of this wheel is: [Hint: one revolution equals 2n rad). A. 2.65 B. 50.0 C. 13.7 D. 23.1 E. Zero Q.17: The disc in the adjacent figure has radius R and rotates (4) with an angular axle ( ) passing through point o and perpendicular represent the angular
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotation Of A Rigid Object About A Fixed Axis
Section: Chapter Questions
Problem 10.3OQ: A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s2. At different...
Related questions
Question
Physics, please solve question 16
![Q.15: The angular position ($ all) of a swinging (+j) rigid body is given by:
e(t) = (-4t3+ 2t2 + 100t +5) rad
The magnitude of the angular velocity (in rad/s) of this body att= 2 sec is:
A. 9.8
В. 28
C. 60
Q.16: At t = 0, a wheel (Jac) rotating about a fixed axis at a constant angular acceleration has an
angular speed of 2 rad/s. Two seconds later it has turned through 8 complete revolutions ().
The magnitude of the angular acceleration (in rad/s) of this wheel is:
[Hint: one revolution equals 2n rad).
D. 92
E. 112
A. 2.65
B. 50.0
Q.17: The disc in the adjacent figure has radius R and rotates () with an angular speed w about an
axle () passing through point o and perpendicular ( gac) to the plane of the disc. Let w, a and V
represent the angular speed, angular acceleration and linear speed,
respectively ( e). If points A, B, and C lie at the rim (a) of the disc,
then which of the following statements is entirely (IS) correct:
A. VA = VB = Vc and wa = WB = Wc
B. VA = VB = Vc and wa > We >Wc
C. aA >aB > ac and VA = Vg = Vc
D. WA = WB = wcand Vc> V8 > VA
E. WA> WB > wc and VA> V8 > Vc
Q.18: A rigid body rotates around an axis that passes through the origin and perpendicular to its
surface. A force F = (2î + i-k)N acts on the rigid body at the point (1, -1, 1) m.
С. 13.7
D. 23.1
E. Zero
%3D
The magnitude of the torque (in N.m) due to this force calculated about the origin is:
В. 6.5
C. 4.5:
D. 18
E. 23
A. 2.1
Q.19: A 4-kg particle has its position in the XY-plane given by:
the angular momentum (measured in kg.m/s )of the particle with respect to the origin at t = 1 sec is:
C. 8
F(t) =[(21 + 5)i +(t?-3t +1)i], where t is in seconds and r is in meters. The magnitude of
E. 12
D. 10
В. 6
A. 20
Q.20: In the adjacent figure, a very light rope is wrapped around a wheel of radius
R = 3 m. The wheel can rotate around an axle that is passing through its center
and perpendicular to its surface. A block of mass 14 kg is suspended (a) from
the end of the rope. When the system is released from rest it is observed that the
block descends (a) with constant acceleration of magnitude 5 m/s?
The moment of inertia (measured in ikg.m) of the wheel relative to the rotation
axle is:
%3D
С. 120.9
B. 37.2
A. 9.8
E. 53.8.
D. 240.3](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ee367da-be5c-4591-a9bd-5d06df680f6a%2Fa4cea526-99aa-413e-977b-e2596bdb8115%2F7tck07g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q.15: The angular position ($ all) of a swinging (+j) rigid body is given by:
e(t) = (-4t3+ 2t2 + 100t +5) rad
The magnitude of the angular velocity (in rad/s) of this body att= 2 sec is:
A. 9.8
В. 28
C. 60
Q.16: At t = 0, a wheel (Jac) rotating about a fixed axis at a constant angular acceleration has an
angular speed of 2 rad/s. Two seconds later it has turned through 8 complete revolutions ().
The magnitude of the angular acceleration (in rad/s) of this wheel is:
[Hint: one revolution equals 2n rad).
D. 92
E. 112
A. 2.65
B. 50.0
Q.17: The disc in the adjacent figure has radius R and rotates () with an angular speed w about an
axle () passing through point o and perpendicular ( gac) to the plane of the disc. Let w, a and V
represent the angular speed, angular acceleration and linear speed,
respectively ( e). If points A, B, and C lie at the rim (a) of the disc,
then which of the following statements is entirely (IS) correct:
A. VA = VB = Vc and wa = WB = Wc
B. VA = VB = Vc and wa > We >Wc
C. aA >aB > ac and VA = Vg = Vc
D. WA = WB = wcand Vc> V8 > VA
E. WA> WB > wc and VA> V8 > Vc
Q.18: A rigid body rotates around an axis that passes through the origin and perpendicular to its
surface. A force F = (2î + i-k)N acts on the rigid body at the point (1, -1, 1) m.
С. 13.7
D. 23.1
E. Zero
%3D
The magnitude of the torque (in N.m) due to this force calculated about the origin is:
В. 6.5
C. 4.5:
D. 18
E. 23
A. 2.1
Q.19: A 4-kg particle has its position in the XY-plane given by:
the angular momentum (measured in kg.m/s )of the particle with respect to the origin at t = 1 sec is:
C. 8
F(t) =[(21 + 5)i +(t?-3t +1)i], where t is in seconds and r is in meters. The magnitude of
E. 12
D. 10
В. 6
A. 20
Q.20: In the adjacent figure, a very light rope is wrapped around a wheel of radius
R = 3 m. The wheel can rotate around an axle that is passing through its center
and perpendicular to its surface. A block of mass 14 kg is suspended (a) from
the end of the rope. When the system is released from rest it is observed that the
block descends (a) with constant acceleration of magnitude 5 m/s?
The moment of inertia (measured in ikg.m) of the wheel relative to the rotation
axle is:
%3D
С. 120.9
B. 37.2
A. 9.8
E. 53.8.
D. 240.3
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Knowledge Booster
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.Recommended textbooks for you
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
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, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Glencoe Physics: Principles and Problems, Student…
Physics
ISBN:
9780078807213
Author:
Paul W. Zitzewitz
Publisher:
Glencoe/McGraw-Hill
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning