How many pounds of pressure does it take to break a windshield from inside?

Question

How many pounds of pressure does it take to break a windshield from inside?

Answer 1

You might find what you are looking for at this site and good luck....................

http://www.nhtsa.dot.gov/

Answer 2

depends where you hit it.

if you hit it n the middle it takes quite a large amount of force; if you tap it near the edge it will shatter much more easily.

Answer 3

not that much I think,  my ex broke one out of my car by punching it, a very long time ago.  Maybe they make em tougher these days.