Question

The CD in your disk player spins at about 20 radians/second. If it accelerates uniformly from rest with angular acceleration of 15 rad/s^2 , how many revolutions does the disk make before it is at the proper speed? A) 2.12 rev B) 3.43 rev C) 4.26 rev D) 4.97 rev E) 6.31 rev

          The CD in your disk player spins at about 20 radians/second. If it accelerates uniformly from rest with angular acceleration of 15 rad/s^2 , how many revolutions does the disk make before it is at the proper speed?
A) 2.12 rev
B) 3.43 rev
C) 4.26 rev
D) 4.97 rev
E) 6.31 rev

The CD in your disk player spins at about 20 radians/second. If it accelerates uniformly from rest with angular acceleration of 15 rad/s^2 , how many revolutions does the disk make before it is at the proper speed?
A) 2.12 rev
B) 3.43 rev
C) 4.26 rev
D) 4.97 rev
E) 6.31 rev

Added by Victor Manuel W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

10/04/2022

Step 1

4 s ω = 20 rad/s + 21 rad/s ω = 41 rad/s Show more…

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The CD in your disk player spins at about 20 radians/second. If it accelerates uniformly from rest with angular acceleration of 15 rad/s^2 , how many revolutions does the disk make before it is at the proper speed? A) 2.12 rev B) 3.43 rev C) 4.26 rev D) 4.97 rev E) 6.31 rev