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A compact disk, which has a diameter of 12.0 cm, speeds up

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker ISBN: 9780321541635 54

Solution for problem 36P Chapter 10

Physics with MasteringPhysics | 4th Edition

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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

Physics with MasteringPhysics | 4th Edition

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Problem 36P

Problem 36P

A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from 0.00 to 4.00 rev/s in 3.00 s. What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is (a) 2.00 rev/s and (b) 3.00 rev/s?

Step-by-Step Solution:

Solution 36P

a.)

Step 1 of 2

We have to find the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 2.00 rev/s

The tangential acceleration is given by the expression

where,

radius of disk = 6 cm = 0.06 m

angular acceleration in rad/s2

The angular accelerationis given by

 

   =

   = 8.38 rad/s2

Hence, the tangential acceleration is

     =

    = 0.503 rad/s2

Therefore, the tangential acceleration of a point on the outer rim of the disk is 0.503 rad/s2.



b.)

Step 2 of 2

Chapter 10, Problem 36P is Solved
Textbook: Physics with MasteringPhysics
Edition: 4
Author: James S. Walker
ISBN: 9780321541635

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A compact disk, which has a diameter of 12.0 cm, speeds up