A disc of radius R = 2 m has a moment of inertia | = 250 kg.m2 and is rotating at 10 rev/min about a frictionless vertical axle. Facing the axle, a 50 kg child hops (jää) onto the disc and manages to sit down on the disk at a distance of 1 m from the axis of rotation. The new angular speed of the disc (in rev/min) is: A. 2.3 В. 5.1 C. 9.1 D. 12.6 E. 8.3
A disc of radius R = 2 m has a moment of inertia | = 250 kg.m2 and is rotating at 10 rev/min about a frictionless vertical axle. Facing the axle, a 50 kg child hops (jää) onto the disc and manages to sit down on the disk at a distance of 1 m from the axis of rotation. The new angular speed of the disc (in rev/min) is: A. 2.3 В. 5.1 C. 9.1 D. 12.6 E. 8.3
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter10: Fixed-axis Rotation
Section: Chapter Questions
Problem 47P: A man stands on a merry-go-round that is rotating at 2.5 rad/s. If the coefficient of static...
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![A disc of radius R = 2 m has a moment of inertia
| = 250 kg.m2 and is rotating at 10 rev/min about
a frictionless vertical axle. Facing the axle, a 50 kg child
hops (j) onto the disc and manages to sit down on the
%3D
disk at a distance of 1 m from the axis of rotation.
The new angular speed of the disc (in rev/min) is:
А. 2.3
В. 5.1
C. 9.1
D. 12.6
E. 8.3
indows.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3c8c072-a285-4c08-9be9-51dad89c23d6%2Fb6ee6f68-8256-4f47-a887-c6bfcba01dfb%2Fionmo4r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A disc of radius R = 2 m has a moment of inertia
| = 250 kg.m2 and is rotating at 10 rev/min about
a frictionless vertical axle. Facing the axle, a 50 kg child
hops (j) onto the disc and manages to sit down on the
%3D
disk at a distance of 1 m from the axis of rotation.
The new angular speed of the disc (in rev/min) is:
А. 2.3
В. 5.1
C. 9.1
D. 12.6
E. 8.3
indows.
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