Doppler Effect in Circular Motion

[confusedinphys]

[SOLVED] Doppler Effect in Circular Motion

Homework Statement

A Physics professor annoys his students by tying a 500 Hz generator to a 60cm long string and whirling it around his head at 100 rpm. What are the highest and lowest frequencies heard by the students?

Homework Equations

The Attempt at a Solution

 

[learningphysics]

What is the equation for doppler effect?

What is the speed of the generator when the professor is twirling it? suppose the students are gathered at together right in front of the professor...

In the circular path of the generator when is the generator moving fastest towards the students... this gives the maximum frequency... when does it move fastest away from the students... this gives the minimum frequency.