|WikiProject Physics||(Rated Start-class, Mid-importance)|
There is difference in relation between tangential velocity and rotational velocity definition in speed and Rotational speed Here V=2πrω, in speed angular velocity V=rω 220.127.116.11 (talk) 11:49, 20 July 2014 (UTC)
This article needs writing, or redirecting
I've replaced the first paragraph by sourced information, but most of this article (which needn't be long or complex) needs writing per (simple) sources with standard notation.
Do we even need this article? it's just angular velocity multiplied by a constant; it coul dbe a redirect to angular velocity, or revolutions per minute, dealt with in a sentence there. Pol098 (talk) 17:37, 10 February 2015 (UTC)