How do you calculate frequency from a given velocity value?

1 Answer
Jul 27, 2016

I am not sure I have interpreted your question correctly...

Explanation:

I think of (uniform) velocity, say, in a typical periodic rotational motion where you have:
#v=omegar#
where velocity (linear) #v# is related to the "circular" corresponding velocity called angular frequency, #omega#.
Angular frequency is a kind of circular velocity because it tells us how many radians are described in a period of time so to complete a circle it will take a time called Period (the time to complete an entire circle) #T#:
#omega=(2pi)/T#
Period is related to frequency #f# as: #T=1/f#:
and so:
#omega=2pif#
Collecting all our information we get:
#v=omegar#

#v=2pif*r#
so that we can evaluate frequency: #f=v/(2pir)#