How many pounds of pressure are necessary to crush a windpipe with a single finger blow ?

Question

Hi, i'm writing from Italy; in my country no one gave me a nice answer to this question, so i hope some of you'll do it, thanks.

Answer 1

approximately 33 pounds of pressure to crush/break the trachea and approximately 11 pounds to collaps it-which is what it takes to collapse the arteries behind it.

Edit- Just for the record those figures might seem like a lot, however they are very miniscule. Much much lighter than one would think.

Answer 2

1lb .   It doesnt take much. a very lethal blow.

Answer 3

less pressure than it takes to crush a pop can! Very Dangerous!!!