A disk is initially rotating counterclockwise around a fixed axis with angular speed w0. Answer the questions below. A. What is the net torque acting on the disk if the radius is 0.6 m?B. If the moment of inertia of the disk is 4kg ∙ m^2, what is the angular acceleration of the disk?C. If the initial angular velocity is 6 rad/s counterclockwise, what is the angular velocity after 10 seconds?D. What happens to the angular velocity of the disk over time? Sketch a graph! A disk is initially rotating counterclockwisearound a fixed axis with angular speed wo-A. What is the net torque acting on the disk ifthe radius is 0.6 m?B. If the moment of inertia of the disk is4kg - m², what is the angular accelerationof the disk?20 Nc. If the initial angular velocity is 6 rad/scounterclockwise, what is the angularvelocity after 10 seconds?| 40 ND. What happens to the angular velocity ofthe disk over time? Sketch a graph!Include the direction in your answers!

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Answered: A disk is initially rotating…

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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A disk is initially rotating counterclockwise around a fixed axis with angular speed w0. Answer the questions below.

A. What is the net torque acting on the disk if the radius is 0.6 m?

B. If the moment of inertia of the disk is 4kg ∙ m^2, what is the angular acceleration of the disk?

C. If the initial angular velocity is 6 rad/s counterclockwise, what is the angular velocity after 10 seconds?

D. What happens to the angular velocity of the disk over time? Sketch a graph!

A disk is initially rotating counterclockwise
around a fixed axis with angular speed wo-
A. What is the net torque acting on the disk if
the radius is 0.6 m?
B. If the moment of inertia of the disk is
4kg - m², what is the angular acceleration
of the disk?
20 N
c. If the initial angular velocity is 6 rad/s
counterclockwise, what is the angular
velocity after 10 seconds?
| 40 N
D. What happens to the angular velocity of
the disk over time? Sketch a graph!
Include the direction in your answers!

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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