Answered: The disk is moving to the left such…

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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Part B

Determine the direction of the acceleration of point BB measured clockwise from the positive xx axis.

Express your answer using three significant figures.

thanks for your help! ive been stuck on this problem all day

The disk is moving to the left such that it has an angular
acceleration a = 9 rad/s² and angular velocity
w = 2 rad/s at the instant shown. It does not slip at A.
Suppose that r = 0.4 m. (Figure 1)
Figure
1 of 1
>
α
30°
B

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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