- #1

The Tutor

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## Homework Statement

This is my first post, so it might not be that great... Anyways, I need help deriving the formula. This formula is pertaining to the doppler effect, and more specifically, to find the frequency of a sound made from an object moving toward/away from you.

f

_{2}= f

_{1}(v/v-v

_{s}) or... f

_{1}(v/v+v

_{s})

Where f

_{2}is the second frequency, f

_{1}is the first frequency, v is velocity, and v

_{s}is the velocity of the source.

## Homework Equations

v=(lambda)(frequency) (I don't know how to make any symbols =/)

v=d/t

beat frequency= absf

_{1}-f

_{2}endabs

## The Attempt at a Solution

What I did was try to make every variable a frequency, and I had no idea what to substitute in for v

_{s}...