A mouse of mass m jumps on a freelyrotating disc of moment of inertia I andradius R. If wo and w are the angular velocities of4the disc before and after mouse jumps, then theratio w/wo is:(a) I/mR?(b) I/I-mR?(c) I/I+mR?(d) (I-mR?)/I

From the conservation of angular momentum, I1ω1=I2ω2

Answered: 4 A mouse of mass m jumps on a freely…

4 A mouse of mass m jumps on a freely rotating disc of moment of inertia I and radius R. If wo and w are the angular velocities of the disc before and after mouse jumps, then the ratio w/wo is:

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section13.6: Angular Momentum

Problem 13.2CE: Figure 13.24 shows a particle with momentum p. Using the coordinate systems shown, determine the...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

A mouse of mass m jumps on a freely
rotating disc of moment of inertia I and
radius R. If wo and w are the angular velocities of
4
the disc before and after mouse jumps, then the
ratio w/wo is:
(a) I/mR?
(b) I/I-mR?
(c) I/I+mR?
(d) (I-mR?)/I

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