Problem: A CD-ROM is accelerated from rest with constant angular acceleration αo.Find the time for the disk to complete the first full loop. [a] t = 1/2  (αo2 ) [b] t = 2π/αo [c] t = 4π/αo [d] t = (2π/αo)1/2 [e] t = (4π/αo)1/2

Problem Details

A CD-ROM is accelerated from rest with constant angular acceleration αo.Find the time for the disk to complete the first full loop.

[a] t = 1/2  (αo)

[b] t = 2π/αo

[c] t = 4π/αo

[d] t = (2π/αo)1/2

[e] t = (4π/αo)1/2

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Equations of Rotational Motion concept. You can view video lessons to learn Equations of Rotational Motion. Or if you need more Equations of Rotational Motion practice, you can also practice Equations of Rotational Motion practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 1 minute and 36 seconds to solve this problem. You can follow their steps in the video explanation above.