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IanIanIan
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Homework Statement
Someone is free falling off a cliff. 20 m below the clifftop they scream with a frequency f. a) What does a person standing at the top of the cliff hear? b) what will they hear when the person is 40 m below the cliff?
Homework Equations
f'=f(v+-v_d)/(v-+v_s)
The Attempt at a Solution
I have no problem whatsoever with part a, but our professor gave us part b to think about over the weekend and said it would likely be on our midterm that's coming up. I looked at it and at first thought it easy as well, but he pointed out that they started screaming at 20 m below, not at 40 m. So they have already been screaming for the last 20 m. I can't fathom what this does to the frequency though. Does anyone have any idea where to start on something like this?