PDA

View Full Version : Revolutions per second (hertz) of a CD

cgarrison
Sep 11, 2006, 11:40 AM
What is the rotational speed in revolutions per second (hertz) of a CD in the following situations
a)the disc makes four revolutions in 48 secods
Curlyben
Sep 11, 2006, 12:00 PM
Well I believe that you have almost answered your own question:


rotational speed in revolutions per second (hertz)

A small bit of simple maths and you have the solution.